128219792

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{195457}}^1$

素因数の和:195506

約数の個数: 20

約数和(自身を含む): 254486316

約数和(自身を除く): 126266524

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 195457, 390914, 781828, 1563656, 3127312, 8013737, 16027474, 32054948, 64109896, 128219792]

約数ペア:

[(1, 128219792), (2, 64109896), (4, 32054948), (8, 16027474), (16, 8013737), (41, 3127312), (82, 1563656), (164, 781828), (328, 390914), (656, 195457)]