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 Practice
{
    public static void Main()
    {
        string[] str = Console.ReadLine().Split(' ');
        int a = int.Parse(str[0]), b = int.Parse(str[1]), c = int.Parse(str[2]);
        int cnt = 0;
        for (int i = a; i <= b; ++i) if (c % i == 0) ++cnt;
        Console.WriteLine(cnt);
    }
}