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;

namespace Sample
{
	class Program
	{
		static void Main(string[] args)
		{
			var array = Console.ReadLine().Split().Select(s => int.Parse(s)).ToArray();

			var a = array[0];
			var b = array[1];
			var c = array[2];

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

			Console.WriteLine(cnt);
		}
	}
}