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 A134682 #11 Feb 21 2025 08:23:22 %S A134682 1,2,4,6,10,16,12,20,44,24,30,36,102,48,80,112,72,60,108,132,200,220, %T A134682 192,144,320,120,216,210,312,180,252,690,300,468,240,336,432,528,576, %U A134682 816,1104,1040,360,504,420,540,600,660,1056,1020,1380,1296,2052,900 %N A134682 Smallest number such that in base 10 the concatenation of its divisors has n digits. %C A134682 a(n) = Min{m: A134681(m) = n}. %o A134682 (PARI) a(n) = my(k=1); while (sumdiv(k, d, #digits(d)) != n, k++); k; \\ _Michel Marcus_, Feb 21 2025 %Y A134682 Cf. A037278, A055642, A134681, A027750. %K A134682 nonn,base %O A134682 1,2 %A A134682 _Reinhard Zumkeller_, Nov 06 2007