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 A307893 #10 May 29 2024 12:41:27
%S A307893 1,3,4,14,6,6,8,120,39,90,12,1008,14,84,120,1984,18,4212,20,8400,672,
%T A307893 198,24,69120,155,546,1080,784,30,27000,32,64512,528,918,1680,
%U A307893 25474176,38,570,2184,576000,42,148176,44,40656,52650,828,48,164560896,399,232500
%N A307893 a(n) = lcm(sigma(n), pod(n)) / n, where sigma (k) = the sum of divisors of k (A000203) and pod(n) = the product of divisors of k (A007955).
%C A307893 n divides lcm(sigma(n), pod(n)) for all n >= 1.
%F A307893 a(n) = A324529(n) / n.
%e A307893 For n=4: a(4) = lcm(sigma(4), pod(4))/4 = lcm(7, 8)/4 = 56/4 = 14.
%t A307893 Table[LCM[DivisorSigma[1,n],Times@@Divisors[n]]/n,{n,60}] (* _Harvey P. Dale_, May 29 2024 *)
%o A307893 (Magma) [LCM(SumOfDivisors(n), &*[d: d in Divisors(n)]) / n: n in [1.. 10^5]]
%Y A307893 Cf. A000203, A007955, A324529.
%K A307893 nonn
%O A307893 1,2
%A A307893 _Jaroslav Krizek_, May 03 2019