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;

public class Test
{
	static public void Main( )
	{
		string[] abc = Console.ReadLine().Split( ' ' );
		
		var a = int.Parse( abc[0] );
		var b = int.Parse( abc[1] );
		var c = int.Parse( abc[2] );
		
		var cnt = 0;
		for( var i=a; i<=b; i++ ) {
			if( 0 == c%i ) cnt++;
		}
		
		Console.WriteLine( cnt );
	}
}