681222544

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{1038449}}^1$

素因数の和:1038498

約数の個数: 20

約数和(自身を含む): 1352061900

約数和(自身を除く): 670839356

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 1038449, 2076898, 4153796, 8307592, 16615184, 42576409, 85152818, 170305636, 340611272, 681222544]

約数ペア:

[(1, 681222544), (2, 340611272), (4, 170305636), (8, 85152818), (16, 42576409), (41, 16615184), (82, 8307592), (164, 4153796), (328, 2076898), (656, 1038449)]