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 A069934 #13 Feb 22 2023 16:34:29
%S A069934 1,3,4,21,6,12,8,105,52,18,12,84,14,24,24,3255,18,156,20,126,32,36,24,
%T A069934 420,186,42,520,168,30,72,32,9765,48,54,48,1092,38,60,56,630,42,96,44,
%U A069934 252,312,72,48,13020,456,558,72,294,54,1560,72,840,80,90,60,504,62,96
%N A069934 a(n) = lcm_{d|n} sigma(d).
%H A069934 Antti Karttunen, <a href="/A069934/b069934.txt">Table of n, a(n) for n = 1..10000</a>
%H A069934 <a href="/index/Lc#lcm">Index entries for sequences related to lcm's</a>
%F A069934 Multiplicative with a(p^e) = Product_{k=2..e+1} Phi_k(p), where Phi_k(x) is k-th cyclotomic polynomial.
%t A069934 Table[LCM@@(DivisorSigma[1,#]&/@Divisors[n]),{n,70}] (* _Harvey P. Dale_, Feb 22 2023 *)
%o A069934 (PARI) A069934(n) = my(d = divisors(n)); lcm(vector(#d, k, sigma(d[k]))); \\ _Antti Karttunen_, Sep 10 2017
%Y A069934 Cf. A000203, A051549, A253139.
%K A069934 mult,nonn
%O A069934 1,2
%A A069934 _Vladeta Jovovic_, Apr 25 2002