A332736 Numbers k such that the sum of the norm of divisors of k in Gaussian integers is divisible by k.
1, 14, 15, 30, 60, 70, 120, 210, 315, 350, 630, 1260, 1612, 1680, 1860, 2520, 4095, 4588, 5080, 5250, 5535, 8190, 10850, 11070, 11284, 15240, 16380, 17520, 22140, 24180, 32760, 34125, 38745, 39060, 40880, 42000, 42720, 43216, 44280, 45720, 54243, 56420, 59644
Offset: 1
Keywords
Examples
14 is a term since A317797(14) = 350 is divisible by 14.
Links
- Amiram Eldar, Table of n, a(n) for n = 1..2500
Programs
-
Mathematica
Select[Range[10000], Divisible[Plus @@ (Abs[Divisors[#, GaussianIntegers -> True]]^2), #] &]