6800228816domain: NAppears in sequencesNumbers k such that sigma(k) == 8 (mod k).at n=27A045770Numbers k whose abundance is 8: sigma(k) - 2*k = 8.at n=23A088833Numbers m with divisor 8 | m and abundance sigma(m)-2*m = 8.at n=13A181598Numbers k such that sigma(k) == 0 (mod k+4).at n=28A274553