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A033289
Odd Power Perfect numbers: opsigma(n) = 2*n.
+0
1
6, 264, 45408, 10177920, 9310826880, 27806077440, 25437179036160, 303753589954560, 277875743791011840, 14504815632384, 13269098919960576, 2534919599177957376, 2318960803647990104064
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified December 19 12:50 EST 2009. Contains 171053 sequences.
AT&T Labs Research
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