Sequence: smallest number with exactly n divisors
Sequence: smallest number with exactly n divisors is a draft programming task. It is not yet considered ready to be promoted as a complete task, for reasons that should be found in its talk page.
Calculate the sequence where each term an is the smallest natural numbers that has exactly n divisors.
- Task
Show here, on this page, at least the first 15 terms of the sequence.
- See also
- Related tasks
Perl 6
<lang perl6>sub div-count (\x) {
return 2 if x.is-prime; +flat (1 .. x.sqrt.floor).map: -> \d { unless x % d { my \y = x div d; y == d ?? y !! (y, d) } }
}
my $limit = 15;
put "First $limit terms of OEIS:A005179"; put (1..$limit).map: -> $n { first { $n == .&div-count }, 1..Inf };
</lang>
- Output:
First 15 terms of OEIS:A005179 1 2 4 6 16 12 64 24 36 48 1024 60 4096 192 144