%I A073931
%S A073931 77,1568,2768,4775040
%N A073931 Numbers n such that sum of the anti-divisors of n = 2n.
%C A073931 See A066272 for definition of anti-divisor.
%Y A073931 Cf. A066417.
%Y A073931 Sequence in context: A046149 A125581 A093277 this_sequence A105253 A017793 
               A017740
%Y A073931 Adjacent sequences: A073928 A073929 A073930 this_sequence A073932 A073933 
               A073934
%K A073931 more,nonn
%O A073931 1,1
%A A073931 Jason Earls (zevi_35711(AT)yahoo.com), Sep 03 2002