Numbers k such that the number of divisors of k and sum of 4th powers of divisors of k are relatively prime.
A046681
Numbers k such that the number of divisors of k and sum of 4th powers of divisors of k are relatively prime.
Terms
- a(0) =1a(1) =2a(2) =8a(3) =9a(4) =18a(5) =64a(6) =72a(7) =128a(8) =625a(9) =729a(10) =1024a(11) =1152a(12) =1250a(13) =1458a(14) =4096a(15) =5000a(16) =5625a(17) =5832a(18) =6561a(19) =8192a(20) =9216a(21) =11250a(22) =13122a(23) =15625a(24) =31250a(25) =32768a(26) =40000a(27) =45000a(28) =46656a(29) =52488
External references
- oeis: A046681