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A178861 Divisors of 15120. 19
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 105, 108, 112, 120, 126, 135, 140, 144, 168, 180, 189, 210, 216, 240, 252, 270, 280, 315, 336, 360, 378, 420, 432, 504, 540, 560, 630 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

15120 is a highly composite number: A002182(22)=15120;

the sequence is finite with A002183(22)=80 terms: a(80)=15120.

15120 is the smallest number with 80 divisors; 18480 is the next smallest; there are 84 such numbers less than 100,000. - Harvey P. Dale, Dec 17 2013

LINKS

R. Zumkeller, Table of n, a(n) for n = 1..80

Eric Weisstein's World of Mathematics, Highly Composite Number

Index entries for sequences related to divisors of numbers

MATHEMATICA

Divisors[15120] (* Harvey P. Dale, Dec 17 2013 *)

PROG

(PARI) A178861=divisors(15120)  \\ - M. F. Hasler, Feb 14 2013

CROSSREFS

Cf. A018253, A018256, A018261, A018266, A018293, A018321, A018350, A018412, A018609, A018676, A178877, A178878, A165412, A178858, A178859, A178860, A178862, A178863, A178864.

Sequence in context: A178863 A176526 A200001 * A178862 A178860 A178858

Adjacent sequences:  A178858 A178859 A178860 * A178862 A178863 A178864

KEYWORD

fini,nonn,easy,full

AUTHOR

Reinhard Zumkeller, Jun 21 2010

STATUS

approved

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Last modified October 1 17:45 EDT 2020. Contains 337444 sequences. (Running on oeis4.)