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 ITP1_3_D
{
	class Program
	{
		static void Main(string[] args)
		{
			string[] vs = Console.ReadLine().Split(' ');
			int a = int.Parse(vs[0]);
			int b = int.Parse(vs[1]);
			int c = int.Parse(vs[2]);

			int ans = 0;
			for(int i = a; i <= b; i++) {
				if(c % i == 0) {
					ans++;
				}
			}

			Console.WriteLine(ans);
		}
	}
}