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Numbers whose sum of anti-divisors is a square.
0

%I #13 Apr 13 2024 14:55:33

%S 1,2,6,14,22,30,89,96,120,121,169,219,221,228,253,259,323,357,397,431,

%T 467,485,554,579,719,726,739,740,778,803,841,873,881,902,923,1004,

%U 1014,1028,1262,1313,1331,1527,1568,1734,1790,1822,1862,1903,1926,2045,2063

%N Numbers whose sum of anti-divisors is a square.

%Y Cf. A066417, A066272 (anti-divisors).

%K easy,nonn

%O 1,2

%A _Jason Earls_, Sep 05 2002