import java.lang.reflect.Array;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Scanner;
import java.util.stream.Stream;

public class Main {
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();
        int c = sc.nextInt();
        int count = 0;

        for(int i=a; i<=b; i++){
            if (c % i == 0){
                count++;
            }
        }

        System.out.println(count);
    }
}
 import java.lang.reflect.Array; Array java.lang.reflect import java.util.ArrayList; ArrayList java.util import java.util.Collections; Collections java.util import java.util.Scanner; Scanner java.util import java.util.stream.Stream; Stream java.util.stream public class Main {
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();
        int c = sc.nextInt();
        int count = 0;

        for(int i=a; i<=b; i++){
            if (c % i == 0){
                count++;
            }
        }

        System.out.println(count);
    }
} Main public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();
        int c = sc.nextInt();
        int count = 0;

        for(int i=a; i<=b; i++){
            if (c % i == 0){
                count++;
            }
        }

        System.out.println(count);
    } main {
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();
        int c = sc.nextInt();
        int count = 0;

        for(int i=a; i<=b; i++){
            if (c % i == 0){
                count++;
            }
        }

        System.out.println(count);
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int a = sc.nextInt(); a sc.nextInt() sc.nextInt sc int b = sc.nextInt(); b sc.nextInt() sc.nextInt sc int c = sc.nextInt(); c sc.nextInt() sc.nextInt sc int count = 0; count 0 for(int i=a; i<=b; i++){
            if (c % i == 0){
                count++;
            }
        } int i=a; int i=a; i a i<=b i b i++ i++ i {
            if (c % i == 0){
                count++;
            }
        } {
            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 sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();
        int c = sc.nextInt();
        int count = 0;

        for(int i=a; i<=b; i++){
            if (c % i == 0){
                count++;
            }
        }

        System.out.println(count);
    }
} public class Main {
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();
        int c = sc.nextInt();
        int count = 0;

        for(int i=a; i<=b; i++){
            if (c % i == 0){
                count++;
            }
        }

        System.out.println(count);
    }
} Main
import java.lang.reflect.Array;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Scanner;
import java.util.stream.Stream;

public class Main {
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();
        int c = sc.nextInt();
        int count = 0;

        for(int i=a; i<=b; i++){
            if (c % i == 0){
                count++;
            }
        }

        System.out.println(count);
    }
}

