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 Python3 (judge verdict: Accepted)

from itertools import repeat
print(sum((lambda a, b, c: map(lambda r, n: n % r == 0,
                               range(a, b+1), repeat(c))
           )(*map(int, input().split()))))