114141404156domain: NAppears in sequencesNumbers k such that sigma(k) == 8 (mod k).at n=30A045770Numbers k whose abundance is 8: sigma(k) - 2*k = 8.at n=26A088833Primitive weird numbers (pwn) with nonsquarefree odd part.at n=3A273815Numbers k such that sigma(k) == 0 (mod k+4).at n=31A274553