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 Ruby (judge verdict: Accepted)


def h_m_div(a,b,c)
  num = 0
  for i in a..b
    if c%i == 0
      num = num+1
    end
  end
  num
end


ar = gets.split(" ")
a = ar[0].to_i
b = ar[1].to_i
c = ar[2].to_i

puts h_m_div(a,b,c)