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: Accepted)

using System;
class aizu{
    public static int Main(){
        int i;
        int[] n = new int[100];
        string[] str = new string[500];
        str = Console.ReadLine().Split(' ');
        for(i=0;i<3;i++)
            n[i] = int.Parse(str[i]);
        for(i=n[0];i<=n[1];i++){
            if(n[2]%i==0)
                n[3]+=1;
        }
        Console.WriteLine("{0}",n[3]);
        return 0;
    }
}