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Codeforces Round 465 (Div. 2) Finished

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The problem statement has recently been changed. View the changes.
×
A. Fafa and his Company
time limit per test
1 second
memory limit per test
256 megabytes
input
standard input
output
standard output

Fafa owns a company that works on huge projects. There are n employees in Fafa's
company. Whenever the company has a new project to start working on, Fafa has to
divide the tasks of this project among all the employees.

Fafa finds doing this every time is very tiring for him. So, he decided to
choose the best l employees in his company as team leaders. Whenever there is a
new project, Fafa will divide the tasks among only the team leaders and each
team leader will be responsible of some positive number of employees to give
them the tasks. To make this process fair for the team leaders, each one of them
should be responsible for the same number of employees. Moreover, every
employee, who is not a team leader, has to be under the responsibility of
exactly one team leader, and no team leader is responsible for another team
leader.

Given the number of employees n, find in how many ways Fafa could choose the
number of team leaders l in such a way that it is possible to divide employees
between them evenly.

Input

The input consists of a single line containing a positive integer n
(2 ≤ n ≤ 105) — the number of employees in Fafa's company.

Output

Print a single integer representing the answer to the problem.

Examples
Input
Copy

2


Output
Copy

1


Input
Copy

10


Output
Copy

3


Note

In the second sample Fafa has 3 ways:

 * choose only 1 employee as a team leader with 9 employees under his
   responsibility.
 * choose 2 employees as team leaders with 4 employees under the responsibility
   of each of them.
 * choose 5 employees as team leaders with 1 employee under the responsibility
   of each of them.




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