#80
Perfect Numbers
| Difficulty: | Medium |
| Topics: |
A number is "perfect" if the sum of its divisors
equal the number itself.
6 is a perfect number because 1+2+3=6.
Write a function which returns true for perfect numbers
and false otherwise.
 | (= (__ 6) true) |
| (= (__ 7) false) |
| (= (__ 496) true) |
| (= (__ 500) false) |
| (= (__ 8128) true) |