285220207280

素因数分解:

$2^4\times 5^1\times {\mathrm{409}}^1\times {\mathrm{8716999}}^1$

素因数の和:8717421

約数の個数: 40

約数和(自身を含む): 664758420000

約数和(自身を除く): 379538212720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 409, 818, 1636, 2045, 3272, 4090, 6544, 8180, 16360, 32720, 8716999, 17433998, 34867996, 43584995, 69735992, 87169990, 139471984, 174339980, 348679960, 697359920, 3565252591, 7130505182, 14261010364, 17826262955, 28522020728, 35652525910, 57044041456, 71305051820, 142610103640, 285220207280]

約数ペア:

[(1, 285220207280), (2, 142610103640), (4, 71305051820), (5, 57044041456), (8, 35652525910), (10, 28522020728), (16, 17826262955), (20, 14261010364), (40, 7130505182), (80, 3565252591), (409, 697359920), (818, 348679960), (1636, 174339980), (2045, 139471984), (3272, 87169990), (4090, 69735992), (6544, 43584995), (8180, 34867996), (16360, 17433998), (32720, 8716999)]