20623420

素因数分解:

$2^2\times 5^1\times {\mathrm{701}}^1\times {\mathrm{1471}}^1$

素因数の和:2181

約数の個数: 24

約数和(自身を含む): 43400448

約数和(自身を除く): 22777028

約数列:

[1, 2, 4, 5, 10, 20, 701, 1402, 1471, 2804, 2942, 3505, 5884, 7010, 7355, 14020, 14710, 29420, 1031171, 2062342, 4124684, 5155855, 10311710, 20623420]

約数ペア:

[(1, 20623420), (2, 10311710), (4, 5155855), (5, 4124684), (10, 2062342), (20, 1031171), (701, 29420), (1402, 14710), (1471, 14020), (2804, 7355), (2942, 7010), (3505, 5884)]