A141320 Both n and the smallest number with n divisors are in A002182.

1, 2, 4, 6, 12, 24, 36, 48, 60, 120, 180, 240, 360, 720, 1680, 5040, 10080, 20160

Offset

1,2

Comments

Question: is this sequence finite? See A189394 for detailed information.

Intersection of A002182 and A002183. - Jianing Song, Apr 03 2018

Links

Table of n, a(n) for n=1..18.

Formula

a(n) = tau(A189394(n)) = A000005(A189394(n)). - Jianing Song, Apr 03 2018

Example

Both 20160 and the smallest number with 20160 divisors, 195643523275200, are in A002182, so 20160 is a term.

Crossrefs

Cf. A002182, A002183, A189394.

Sequence in context: A189686 A355304 A137425 * A307122 A309015 A355579

Adjacent sequences: A141317 A141318 A141319 * A141321 A141322 A141323

Keyword

more,nonn

Author

J. Lowell, Aug 02 2008

Extensions

a(16)-a(18) from Jianing Song, Apr 03 2018

Status

approved