import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int a = scan.nextInt(), b = scan.nextInt() , c = scan.nextInt();
        int count = 0;
        for(int i = 1; i <= c; i++) {
            if(a <= i && i <= b) {
                if(c % i == 0) {
                count++ ;
                }
            }
        }
        System.out.println(count);
    }
} import java.util.Scanner; Scanner java.util public class Main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int a = scan.nextInt(), b = scan.nextInt() , c = scan.nextInt();
        int count = 0;
        for(int i = 1; i <= c; i++) {
            if(a <= i && i <= b) {
                if(c % i == 0) {
                count++ ;
                }
            }
        }
        System.out.println(count);
    }
} Main public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int a = scan.nextInt(), b = scan.nextInt() , c = scan.nextInt();
        int count = 0;
        for(int i = 1; i <= c; i++) {
            if(a <= i && i <= b) {
                if(c % i == 0) {
                count++ ;
                }
            }
        }
        System.out.println(count);
    } main {
        Scanner scan = new Scanner(System.in);
        int a = scan.nextInt(), b = scan.nextInt() , c = scan.nextInt();
        int count = 0;
        for(int i = 1; i <= c; i++) {
            if(a <= i && i <= b) {
                if(c % i == 0) {
                count++ ;
                }
            }
        }
        System.out.println(count);
    } Scanner scan = new Scanner(System.in); scan new Scanner(System.in) int a = scan.nextInt() a scan.nextInt() scan.nextInt scan b = scan.nextInt() b scan.nextInt() scan.nextInt scan c = scan.nextInt(); c scan.nextInt() scan.nextInt scan int count = 0; count 0 for(int i = 1; i <= c; i++) {
            if(a <= i && i <= b) {
                if(c % i == 0) {
                count++ ;
                }
            }
        } int i = 1; int i = 1; i 1 i <= c i c i++ i++ i {
            if(a <= i && i <= b) {
                if(c % i == 0) {
                count++ ;
                }
            }
        } {
            if(a <= i && i <= b) {
                if(c % i == 0) {
                count++ ;
                }
            }
        } if(a <= i && i <= b) {
                if(c % i == 0) {
                count++ ;
                }
            } a <= i && i <= b a <= i a i i <= b i b {
                if(c % i == 0) {
                count++ ;
                }
            } if(c % i == 0) {
                count++ ;
                } c % i == 0 c % i c i 0 {
                count++ ;
                } count++ count System.out.println(count) System.out.println System.out System System.out count String[] args args public class Main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int a = scan.nextInt(), b = scan.nextInt() , c = scan.nextInt();
        int count = 0;
        for(int i = 1; i <= c; i++) {
            if(a <= i && i <= b) {
                if(c % i == 0) {
                count++ ;
                }
            }
        }
        System.out.println(count);
    }
} public class Main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int a = scan.nextInt(), b = scan.nextInt() , c = scan.nextInt();
        int count = 0;
        for(int i = 1; i <= c; i++) {
            if(a <= i && i <= b) {
                if(c % i == 0) {
                count++ ;
                }
            }
        }
        System.out.println(count);
    }
} Main
import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int a = scan.nextInt(), b = scan.nextInt() , c = scan.nextInt();
        int count = 0;
        for(int i = 1; i <= c; i++) {
            if(a <= i && i <= b) {
                if(c % i == 0) {
                count++ ;
                }
            }
        }
        System.out.println(count);
    }
}