A332532 Even numbers k such that the sum of divisors of k in Gaussian integers is a real number.
10250, 30750, 40400, 71750, 92250, 112750, 121200, 194750, 215250, 235750, 276750, 282800, 308050, 317750, 338250, 363600, 440750, 444400, 467860, 481750, 502250, 584250, 604750, 645750, 686750, 707250, 727750, 767600, 789250, 809750, 830250, 848400, 850750
Offset: 1
Keywords
Examples
10250 is a term since its sum of divisors in Gaussian integers is 41600 which is a real number.
Links
- Amiram Eldar, Table of n, a(n) for n = 1..10000
Programs
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Mathematica
Select[Range[2, 10^6, 2], Im[DivisorSigma[1, #, GaussianIntegers -> True]] == 0 &]
Comments