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 PHP (judge verdict: Accepted)

<?php

$nums = explode(' ',trim(fgets(STDIN)));

$a = $nums[0];

$b = $nums[1];

$c = $nums[2];
$count = 0;
for($i=$a;$i<=$b;$i++){
	
	if( ($c % $i) === 0){
	   $count++; 
	}
}

echo $count,PHP_EOL;