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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 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

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Last modified October 19 16:51 EDT 2020. Contains 337892 sequences. (Running on oeis4.)