Abundant numbers n for which the abundance d = sigma(n) - 2*n is a proper divisor, that is, d | n.
12, 18, 20, 24, 40, 56, 88, 104, 196, 224, 234, 368, 464, 650, 992, 1504, 1888, 1952
2 seqfan posts
Wed Nov 3 22:15:01 CET 2010 [seqfan] Re: Near-perfect numbers