858740154620

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{409}}^1\times {\mathrm{2560499}}^1$

素因数の和:2560958

約数の個数: 48

約数和(自身を含む): 1851856020000

約数和(自身を除く): 993115865380

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 409, 410, 818, 820, 1636, 2045, 4090, 8180, 16769, 33538, 67076, 83845, 167690, 335380, 2560499, 5120998, 10241996, 12802495, 25604990, 51209980, 104980459, 209960918, 419921836, 524902295, 1047244091, 1049804590, 2094488182, 2099609180, 4188976364, 5236220455, 10472440910, 20944881820, 42937007731, 85874015462, 171748030924, 214685038655, 429370077310, 858740154620]

約数ペア:

[(1, 858740154620), (2, 429370077310), (4, 214685038655), (5, 171748030924), (10, 85874015462), (20, 42937007731), (41, 20944881820), (82, 10472440910), (164, 5236220455), (205, 4188976364), (409, 2099609180), (410, 2094488182), (818, 1049804590), (820, 1047244091), (1636, 524902295), (2045, 419921836), (4090, 209960918), (8180, 104980459), (16769, 51209980), (33538, 25604990), (67076, 12802495), (83845, 10241996), (167690, 5120998), (335380, 2560499)]