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;class P{static void Main(){var a=Array.ConvertAll(Console.ReadLine().Split(),int.Parse);var c=0;while(a[0]<=a[1])if(a[2]%a[0]++==0)c++;Console.WriteLine(c);}}