1649990938240

素因数分解:

$2^7\times 5^1\times {\mathrm{2578110841}}^1$

素因数の和:2578110860

約数の個数: 32

約数和(自身を含む): 3944509588260

約数和(自身を除く): 2294518650020

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 2578110841, 5156221682, 10312443364, 12890554205, 20624886728, 25781108410, 41249773456, 51562216820, 82499546912, 103124433640, 164999093824, 206248867280, 329998187648, 412497734560, 824995469120, 1649990938240]

約数ペア:

[(1, 1649990938240), (2, 824995469120), (4, 412497734560), (5, 329998187648), (8, 206248867280), (10, 164999093824), (16, 103124433640), (20, 82499546912), (32, 51562216820), (40, 41249773456), (64, 25781108410), (80, 20624886728), (128, 12890554205), (160, 10312443364), (320, 5156221682), (640, 2578110841)]