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A087005 Divisors of 2310. 5
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 (list; graph; refs; listen; history; text; internal format)
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 *)

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

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Last modified November 22 00:32 EST 2019. Contains 329383 sequences. (Running on oeis4.)