A232702 Sigma(2*m)/m for m such that sigma(2*m) is divisible by m (these m are in A227302).

3, 4, 5, 4, 6, 4, 6, 7, 7, 4, 7, 8, 8, 6, 8, 9, 9, 7, 8, 4, 8, 5, 8, 7, 6, 8, 6, 9, 4, 5, 10, 7, 10, 8, 6, 7, 9, 8, 4, 8, 9, 8, 10, 8, 10, 11, 10, 8, 10, 10, 9, 8, 8, 9

Offset

1,1

Links

Table of n, a(n) for n=1..54.

Prog

(PARI) for(n=1, 10^8, s=sigma(2*n); if(s%n==0, print1(s/n, ", "))) \\ Ralf Stephan, Nov 30 2013

Crossrefs

Cf. A227302, A054030.

Sequence in context: A094634 A114545 A309704 * A325272 A178698 A225072

Adjacent sequences: A232699 A232700 A232701 * A232703 A232704 A232705

Keyword

nonn,more,less

Author

Alex Ratushnyak, Nov 28 2013

Extensions

a(30)-a(54) from Jinyuan Wang, Mar 03 2020

Status

approved