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A192277 Impossible values for both sum of proper divisors of k and sum of anti-divisors of k. 1

%I #13 Sep 23 2022 10:15:33

%S 120,146,206,246,268,288,290,326,342,430,448,472,530,626,658,718,726,

%T 766,804,818,836,926,982,996,1002,1028,1200,1212,1246,1256,1312,1332,

%U 1360,1438,1506,1508,1538,1542,1692,1718,1728,1746,1806,1840,2078,2148,2388

%N Impossible values for both sum of proper divisors of k and sum of anti-divisors of k.

%H Amiram Eldar, <a href="/A192277/b192277.txt">Table of n, a(n) for n = 1..639</a>

%Y Intersection of A005114 and A074898.

%Y Cf. A001065, A066272, A066417, A078923.

%K nonn

%O 1,1

%A _Paolo P. Lava_, Jul 06 2011

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Last modified May 22 01:33 EDT 2024. Contains 372741 sequences. (Running on oeis4.)