Unitary abundant numbers: numbers k such that usigma(k) > 2*k.
A034683
Unitary abundant numbers: numbers k such that usigma(k) > 2*k.
Terms
- a(0) =30a(1) =42a(2) =66a(3) =70a(4) =78a(5) =102a(6) =114a(7) =138a(8) =150a(9) =174a(10) =186a(11) =210a(12) =222a(13) =246a(14) =258a(15) =282a(16) =294a(17) =318a(18) =330a(19) =354a(20) =366a(21) =390a(22) =402a(23) =420a(24) =426a(25) =438a(26) =462a(27) =474a(28) =498a(29) =510
External references
- oeis: A034683