Numbers n such that there exists an m so that squarefree kernel of n = squarefree kernel of m, and n is the sum of the proper divisors of m (m may equal n).
A252234
Numbers n such that there exists an m so that squarefree kernel of n = squarefree kernel of m, and n is the sum of the proper divisors of m (m may equal n).
Terms
- a(0) =6a(1) =28a(2) =36a(3) =50a(4) =240a(5) =312a(6) =384a(7) =450a(8) =496a(9) =810a(10) =1008a(11) =1344a(12) =4256a(13) =4536a(14) =8128a(15) =10800a(16) =11700a(17) =14112a(18) =15288a(19) =19656a(20) =23040a(21) =49686a(22) =90720a(23) =95040a(24) =98280a(25) =98553a(26) =124848a(27) =129024a(28) =153760a(29) =249018
External references
- oeis: A252234