1640928208

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{3308323}}^1$

素因数の和:3308362

約数の個数: 20

約数和(自身を含む): 3281857408

約数和(自身を除く): 1640929200

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 3308323, 6616646, 13233292, 26466584, 52933168, 102558013, 205116026, 410232052, 820464104, 1640928208]

約数ペア:

[(1, 1640928208), (2, 820464104), (4, 410232052), (8, 205116026), (16, 102558013), (31, 52933168), (62, 26466584), (124, 13233292), (248, 6616646), (496, 3308323)]