Noninfinitary superabundant numbers: numbers m such that nisigma(m)/m > nisigma(k)/k for all k < m, where nisigma(m) is the sum of noninfinitary divisors of m (A348271).
A348273
Noninfinitary superabundant numbers: numbers m such that nisigma(m)/m > nisigma(k)/k for all k < m, where nisigma(m) is the sum of noninfinitary divisors of m (A348271).
Terms
- a(0) =1a(1) =4a(2) =12a(3) =16a(4) =36a(5) =48a(6) =144a(7) =720a(8) =3600a(9) =25200a(10) =176400a(11) =226800a(12) =1587600a(13) =1940400a(14) =2494800a(15) =17463600a(16) =32432400a(17) =192099600a(18) =227026800a(19) =2497294800a(20) =3632428800a(21) =32464832400a(22) =39956716800
External references
- oeis: A348273