3938420

素因数分解:

$2^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{1031}}^1$

素因数の和:1231

約数の個数: 24

約数和(自身を含む): 8322048

約数和(自身を除く): 4383628

約数列:

[1, 2, 4, 5, 10, 20, 191, 382, 764, 955, 1031, 1910, 2062, 3820, 4124, 5155, 10310, 20620, 196921, 393842, 787684, 984605, 1969210, 3938420]

約数ペア:

[(1, 3938420), (2, 1969210), (4, 984605), (5, 787684), (10, 393842), (20, 196921), (191, 20620), (382, 10310), (764, 5155), (955, 4124), (1031, 3820), (1910, 2062)]