Prime power pseudoperfect numbers: numbers m > 1 such that 1/m + Sum 1/p^k = 1, where the sum is over the prime powers p^k | m.
A283423
Prime power pseudoperfect numbers: numbers m > 1 such that 1/m + Sum 1/p^k = 1, where the sum is over the prime powers p^k | m.
Terms
- a(0) =2a(1) =4a(2) =6a(3) =8a(4) =16a(5) =18a(6) =20a(7) =32a(8) =42a(9) =54a(10) =64a(11) =100a(12) =128a(13) =162a(14) =256a(15) =272a(16) =294a(17) =342a(18) =486a(19) =500a(20) =512a(21) =1024a(22) =1458a(23) =1806a(24) =2048a(25) =2058a(26) =2500a(27) =4096a(28) =4374a(29) =4624
External references
- oeis: A283423