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Perfect numbers
@THE_GUARD_OF_EVERYTHING
THE_GUARD_OF_EVERYTHING's playlist on Castle
Free 28 (2nd perfect number)
Free 496 (3rd perfect number)
Free 8128 (4th perfect number)
Free 33.5M (5th perfect number)
Free 6th perfect number
Free 7th perfect number
Free 8th perfect number
Free 9th perfect number
Free 10th perfect number