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: Wrong Answer)

tmp = gets.chomp.split.map(&:to_i)
a = tmp[0]
b = tmp[1]
c = tmp[2]

count = 0
p "a = #{a}, b = #{b}, c = #{c}"


times=b-a+1
times.times do
  if c % a == 0
    count += 1
  end
  a += 1
end
puts count
p "a = #{a}"