OFFSET
1,1
LINKS
Amiram Eldar, Table of n, a(n) for n = 1..10000
Eric Weisstein's World of Mathematics, Abundant Number
MATHEMATICA
ab = Select[Range[300], DivisorSigma[1, #] > 2 # &]; s = {}; Do[a = ab[[k]]; j = 1; While[! Divisible[a, ab[[j]]], j++]; AppendTo[s, ab[[j]]], {k, 1, Length[ab]}]; s (* Amiram Eldar, Aug 30 2019 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Reinhard Zumkeller, Dec 27 2003
STATUS
approved