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 Program
{
    static void Main()
    {
        string[] s = Console.ReadLine().Split(' ');
        // 0:a, 1:b, 2:c
        int[] i = new int[s.Length];
        int c = 0;

        for (int j = 0; j < s.Length; j++)
            i[j] = int.Parse(s[j]);

        for (int j = i[0]; j <= i[1]; j++)
        {
            if ( (i[2] % j) == 0 ) 
                c++;
        }

        Console.WriteLine(c.ToString());
    }
}