Numbers k such that the product of divisors of sigma(k) is divisible by the product of divisors of k.
A219362
Numbers k such that the product of divisors of sigma(k) is divisible by the product of divisors of k.
Terms
- a(0) =1a(1) =6a(2) =24a(3) =28a(4) =120a(5) =224a(6) =270a(7) =496a(8) =672a(9) =864a(10) =3375a(11) =3724a(12) =4320a(13) =4680a(14) =6048a(15) =6200a(16) =6860a(17) =8128a(18) =10976a(19) =11172a(20) =13000a(21) =14336a(22) =15872a(23) =18620a(24) =26208a(25) =27000a(26) =29792a(27) =30240a(28) =32760a(29) =39546
External references
- oeis: A219362