1681808

素因数分解:

$2^4\times {\mathrm{257}}^1\times {\mathrm{409}}^1$

素因数の和:674

約数の個数: 20

約数和(自身を含む): 3279180

約数和(自身を除く): 1597372

約数列:

[1, 2, 4, 8, 16, 257, 409, 514, 818, 1028, 1636, 2056, 3272, 4112, 6544, 105113, 210226, 420452, 840904, 1681808]

約数ペア:

[(1, 1681808), (2, 840904), (4, 420452), (8, 210226), (16, 105113), (257, 6544), (409, 4112), (514, 3272), (818, 2056), (1028, 1636)]