Problem:
How Many Divisors?

Write a program which reads three integers a, b and c, and prints the number of divisors of c between a and b.

Input

Three integers a, b and c are given in a line separated by a single space.

Output

Print the number of divisors in a line.

Constraints

1 ≤ a, b, c ≤ 10000

a ≤ b

Sample Input 1

5 14 80

Sample Output 1

3

Solution in C (judge verdict: Time Limit Exceeded)

#include<stdio.h>

int main(void){


    int a, b, c, i, n=0;


    scanf("%d %d %d",&a,&b,&c);


    for(i=a;a<=b;i++){


        if((c%i)==0){


            n++;


        }


    }


    printf("%d\n",n);


    return 0;


}