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
fscanf(STDIN, "%d %d %d", $a, $b, $c);
$counter = 0;
for ($i=$a; $i <= $b; $i++) {
    $remain = $c % $i;
    if (!$remain) {
        $counter++;
    }
}
echo $counter.PHP_EOL;