20178163730

素因数分解:

$2^1\times 5^1\times {\mathrm{421}}^1\times {\mathrm{4792913}}^1$

素因数の和:4793341

約数の個数: 16

約数和(自身を含む): 36406974744

約数和(自身を除く): 16228811014

約数列:

[1, 2, 5, 10, 421, 842, 2105, 4210, 4792913, 9585826, 23964565, 47929130, 2017816373, 4035632746, 10089081865, 20178163730]

約数ペア:

[(1, 20178163730), (2, 10089081865), (5, 4035632746), (10, 2017816373), (421, 47929130), (842, 23964565), (2105, 9585826), (4210, 4792913)]