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A046656
Square roots of sums of squares of divisors in A046655.
4
1, 50, 290, 290, 850, 1690, 1690, 2210, 4930, 6710, 9802, 10660, 22100, 24650, 22100, 28730, 38918, 48100, 48100, 68900, 68900, 114070, 128180, 188500, 188500, 246500, 226798, 246500, 278980, 404260, 399620, 490100, 640900, 640900, 817700, 746980, 906100
OFFSET
1,2
LINKS
Amiram Eldar, Table of n, a(n) for n = 1..1000 (terms 1..500 from Donovan Johnson)
FORMULA
a(n) = sqrt(A001157(A046655(n))). - Amiram Eldar, Aug 12 2023
MATHEMATICA
Select[Sqrt[DivisorSigma[2, #]] & /@ Range[750000], IntegerQ] (* Jayanta Basu, Jun 27 2013 *)
CROSSREFS
Sequence in context: A220864 A205355 A172519 * A205620 A183698 A183690
KEYWORD
nonn
AUTHOR
STATUS
approved