Plot sale

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Mathematics, Easy, Number theory, Factorization
Problem

You have an infinite amount of land.
Your friend wants to buy some rectangular land of area x (always an integer).
He can buy a plot in many ways ,i.e, area=width×length. So, there can be many different ways of picking length and width (they can only be integers).

Note:
a×b and b×a are same

Input format
The first and the only line contains an integer which represents the area x

Output format
Print the number of ways of buying a plot of area x

Constraints
1x1012

Time Limit: 0.5
Memory Limit: 256
Source Limit:
Explanation

2=12
There is only one way of buying a plot

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