import java.io.IOException;
import java.util.Scanner;
public class Main {
	public static void main(String[] args) throws IOException {
				
		Scanner sc = new Scanner(System.in);
         
            int a=sc.nextInt();
            int b=sc.nextInt();
            int c=sc.nextInt();
            
            int tmp=0;
            if(a>b){tmp=a;a=b;b=tmp;
            }int count=0;
            for(int i=a;i<=b;i++){
            	
            	if(c%i==0) count++;
            }System.out.println(count);
	}
        } import java.io.IOException; IOException java.io import java.util.Scanner; Scanner java.util public class Main {
	public static void main(String[] args) throws IOException {
				
		Scanner sc = new Scanner(System.in);
         
            int a=sc.nextInt();
            int b=sc.nextInt();
            int c=sc.nextInt();
            
            int tmp=0;
            if(a>b){tmp=a;a=b;b=tmp;
            }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) throws IOException {
				
		Scanner sc = new Scanner(System.in);
         
            int a=sc.nextInt();
            int b=sc.nextInt();
            int c=sc.nextInt();
            
            int tmp=0;
            if(a>b){tmp=a;a=b;b=tmp;
            }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 tmp=0;
            if(a>b){tmp=a;a=b;b=tmp;
            }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 tmp=0; tmp 0 if(a>b){tmp=a;a=b;b=tmp;
            } a>b a b {tmp=a;a=b;b=tmp;
            } tmp=a tmp a a=b a b b=tmp b tmp 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 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) throws IOException {
				
		Scanner sc = new Scanner(System.in);
         
            int a=sc.nextInt();
            int b=sc.nextInt();
            int c=sc.nextInt();
            
            int tmp=0;
            if(a>b){tmp=a;a=b;b=tmp;
            }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) throws IOException {
				
		Scanner sc = new Scanner(System.in);
         
            int a=sc.nextInt();
            int b=sc.nextInt();
            int c=sc.nextInt();
            
            int tmp=0;
            if(a>b){tmp=a;a=b;b=tmp;
            }int count=0;
            for(int i=a;i<=b;i++){
            	
            	if(c%i==0) count++;
            }System.out.println(count);
	}
        } Main
import java.io.IOException;
import java.util.Scanner;
public class Main {
	public static void main(String[] args) throws IOException {
				
		Scanner sc = new Scanner(System.in);
         
            int a=sc.nextInt();
            int b=sc.nextInt();
            int c=sc.nextInt();
            
            int tmp=0;
            if(a>b){tmp=a;a=b;b=tmp;
            }int count=0;
            for(int i=a;i<=b;i++){
            	
            	if(c%i==0) count++;
            }System.out.println(count);
	}
        }