1288220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1571}}^1$

素因数の和:1621

約数の個数: 24

約数和(自身を含む): 2773008

約数和(自身を除く): 1484788

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 1571, 3142, 6284, 7855, 15710, 31420, 64411, 128822, 257644, 322055, 644110, 1288220]

約数ペア:

[(1, 1288220), (2, 644110), (4, 322055), (5, 257644), (10, 128822), (20, 64411), (41, 31420), (82, 15710), (164, 7855), (205, 6284), (410, 3142), (820, 1571)]