Definition:Quadruply Perfect Number/Sequence
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Sequence of Quadruply Perfect Numbers
The sequence of quadruply perfect numbers begins:
- $30 \, 240, 32 \, 760, 2 \, 178 \, 540, 23 \, 569 \, 920, 45 \, 532 \, 800, 142 \, 990 \, 848, 1 \, 379 \, 454 \, 720, \ldots$
This sequence is A027687 in the On-Line Encyclopedia of Integer Sequences (N. J. A. Sloane (Ed.), 2008).
Sources
- Weisstein, Eric W. "Multiperfect Number." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/MultiperfectNumber.html