[seqfan] gcd(n, sigma_2(n))

[Richard Mathar]

In view of http://oeis.org/A082063 it is interesting that the sequence
of gcd(n, A001157(n)) is apparently not in the OEIS:
1, 1, 1, 1, 1, 2, 1, 1, 1, 10, 1, 6, 1, 2, 5, 1, 1,..
Expecting that someone else is eager to submit this if missing, I'll not do
this myself. If two or more people sumbit, we have the problem of picking
the most adorable of these...
Similarly ,  corresponding to A082066,
gcd(A000203(n), A001157(n)) =
1, 1, 2, 7, 2, 2, 2, 5, 13, 2, 2, 14, 2, 2, 4, 31, 2, 13
may also be useful.