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.Drawing;
using System.Linq;
using System.Text.RegularExpressions;
using System.Text;


namespace aizu
{
	public class EntryPoint
	{
		public static int[] Split(string line)
		{
			return Regex.Split(line, " ").Select(x => int.Parse(x)).ToArray();
		}
		public static void Main()
		{
			var line = Console.ReadLine();
			var v = Split(line);
			
			var a = v[0];
			var b = v[1];
			var c = v[2];
			var d = 0;
			
			for (int i = a; i <= b; i++)
			{
				if (0 == (c % i))
				{
					d++;
				}
			}
			
			Console.WriteLine(d);
		}
	}


}