Numbers k such that k^2 is abundant but d*k is nonabundant for any proper divisor d of k.
A381742
Numbers k such that k^2 is abundant but d*k is nonabundant for any proper divisor d of k.
Terms
- a(0) =14a(1) =124a(2) =585a(3) =1016a(4) =16748a(5) =32085a(6) =33892a(7) =37882a(8) =39962a(9) =41925a(10) =46665a(11) =121605a(12) =134589a(13) =181305a(14) =212175a(15) =388455a(16) =495465a(17) =522488a(18) =524224a(19) =544065a(20) =839865a(21) =1061565a(22) =1152921a(23) =1165515a(24) =1243275a(25) =1247103a(26) =1335411a(27) =1676829a(28) =1943638a(29) =2151075
External references
- oeis: A381742