I'll celebrate my comeback to Cody with this one easy problem...
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The rectangle below is special:
Its area is which equal to . We call such rectangle a factorial rectangle, which is an integer-sided rectangle with an area equal to a factorial number.
In this problem, we want to know how many are these factorial rectangles.
For a given integer n, we define the function as the number of factorial rectangles with area The factorial rectangles with area are as follows: , with rotations not allowed. Hence,
Write a function that will calculate , defined as follows:
For , we are given:
Solve

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Last Solution submitted on Sep 12, 2023

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William David Hill Ramon Villamangca GeeTwo

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