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: Wrong Answer)

using System;
using System.Linq;

namespace AizuOnlineJudgement.ITP1_3_D
{
	public static class Program
	{
		public static void Main (string[] args)
		{
			var abc = Console.ReadLine ().Split (' ').Select (s => int.Parse (s)).ToArray ();
			Console.WriteLine (Enumerable.Range (abc[0], abc[1] - abc[0]).Where (d => abc[2] % d == 0).Count ());
		}
	}
}