28102390

素因数分解:

$2^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{6871}}^1$

素因数の和:7287

約数の個数: 16

約数和(自身を含む): 50715360

約数和(自身を除く): 22612970

約数列:

[1, 2, 5, 10, 409, 818, 2045, 4090, 6871, 13742, 34355, 68710, 2810239, 5620478, 14051195, 28102390]

約数ペア:

[(1, 28102390), (2, 14051195), (5, 5620478), (10, 2810239), (409, 68710), (818, 34355), (2045, 13742), (4090, 6871)]