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;
using System.Linq;

class Program
{
	static void Main(string[] args)
	{
		var input = Console.ReadLine().Split().Select(int.Parse).ToArray();
		var a = input[0];
		var b = input[1];
		var c = input[2];

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

		System.Console.WriteLine(ans);
	}
}