20641630

素因数分解:

$2^1\times 5^1\times {\mathrm{421}}^1\times {\mathrm{4903}}^1$

素因数の和:5331

約数の個数: 16

約数和(自身を含む): 37250784

約数和(自身を除く): 16609154

約数列:

[1, 2, 5, 10, 421, 842, 2105, 4210, 4903, 9806, 24515, 49030, 2064163, 4128326, 10320815, 20641630]

約数ペア:

[(1, 20641630), (2, 10320815), (5, 4128326), (10, 2064163), (421, 49030), (842, 24515), (2105, 9806), (4210, 4903)]