This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A178861 #15 Feb 16 2025 08:33:12 %S A178861 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, %T A178861 48,54,56,60,63,70,72,80,84,90,105,108,112,120,126,135,140,144,168, %U A178861 180,189,210,216,240,252,270,280,315,336,360,378,420,432,504,540,560,630 %N A178861 Divisors of 15120. %C A178861 15120 is a highly composite number: A002182(22)=15120; %C A178861 the sequence is finite with A002183(22)=80 terms: a(80)=15120. %C A178861 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 %H A178861 Reinhard Zumkeller, <a href="/A178861/b178861.txt">Table of n, a(n) for n = 1..80</a> %H A178861 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/HighlyCompositeNumber.html">Highly Composite Number</a> %H A178861 <a href="/index/Di#divisors">Index entries for sequences related to divisors of numbers</a> %t A178861 Divisors[15120] (* _Harvey P. Dale_, Dec 17 2013 *) %o A178861 (PARI) A178861=divisors(15120) \\ _M. F. Hasler_, Feb 14 2013 %Y A178861 Cf. A018253, A018256, A018261, A018266, A018293, A018321, A018350, A018412, A018609, A018676, A178877, A178878, A165412, A178858, A178859, A178860, A178862, A178863, A178864. %K A178861 fini,nonn,easy,full %O A178861 1,2 %A A178861 _Reinhard Zumkeller_, Jun 21 2010