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;

namespace CA { 
    class Program {
        static void Main(string[] args) {
			string[] str = Console.ReadLine().Split(' ');
			int count = 0;
			for(int i = int.Parse(str[0]); i <= int.Parse(str[1]); i++) {
				if (int.Parse(str[2]) % i == 0)
					count++;
			}
			Console.WriteLine(count);
        }
    }
}