365783040domain: NAppears in sequencesNumber m that give records for the quotient between the maximum and minimum x's such that sigma(x)=m.at n=34A241854Numbers that reach 1 under the iterations of the map k -> k/d(k) if d(k) | k, and k -> k otherwise, where d(k) is the number of divisors of k (A000005).at n=23A330816