Definition:Triperfect Number/Sequence

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Sequence of Triperfect Numbers

The sequence of triperfect numbers begins:

$120, \quad 672, \quad 523 \, 776, \quad 459 \, 818 \, 240, \quad 1 \, 476 \, 304 \, 896, \quad 51 \, 001 \, 180 \, 160$

These are all the triperfect numbers that are currently known.

This sequence is A005820 in the On-Line Encyclopedia of Integer Sequences (N. J. A. Sloane (Ed.), 2008).


Sources