A087005 Divisors of 2310.

1, 2, 3, 5, 6, 7, 10, 11, 14, 15, 21, 22, 30, 33, 35, 42, 55, 66, 70, 77, 105, 110, 154, 165, 210, 231, 330, 385, 462, 770, 1155, 2310

Offset

1,2

Comments

2310 = 11# = A002110(5);

divisors of 2310 are squarefree (A005117) and 11-smooth;

a(A000005(2310)) = a(32) = 2310 is the last term.

Links

Table of n, a(n) for n=1..32.

Index entries for sequences related to divisors of numbers

Eric Weisstein's World of Mathematics, Primorial

Eric Weisstein's World of Mathematics, Divisor

Mathematica

squarefrees[s_List] := Block[{a = Subsets[s]}, SortBy[Table[
Product[a[[n, m]], {m, 1, Length[a[[n]]]}], {n, 1, Length[a]}], Abs[#] &]]
A087005 = squarefrees[Prime[Range[5]]](* Fred Daniel Kline, Jan 25 2015 *)
Divisors[2310] (* Harvey P. Dale, Jun 27 2020 *)

Prog

(PARI) divisors(2310) \\ Charles R Greathouse IV, Jun 21 2017

Crossrefs

Cf. A018255, A018336, A087006, A087007, A087008.

Sequence in context: A078135 A073328 A119988 * A302597 A240101 A032892

Adjacent sequences: A087002 A087003 A087004 * A087006 A087007 A087008

Keyword

nonn,fini,full,easy

Author

Reinhard Zumkeller, Jul 29 2003

Status

approved