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A159907
Numbers n with half-integral abundancy index, sigma(n)/n = k+1/2 with integer k.
+0
6
2, 24, 4320, 4680, 26208, 8910720, 17428320, 20427264, 91963648, 197064960, 8583644160, 10200236032, 21857648640, 57575890944, 57629644800, 206166804480, 17116004505600, 1416963251404800, 15338300494970880
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Maintained by
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Last modified December 21 10:15 EST 2009. Contains 171081 sequences.
AT&T Labs Research
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