165307984

素因数分解:

$2^4\times {\mathrm{409}}^1\times {\mathrm{25261}}^1$

素因数の和:25678

約数の個数: 20

約数和(自身を含む): 321080020

約数和(自身を除く): 155772036

約数列:

[1, 2, 4, 8, 16, 409, 818, 1636, 3272, 6544, 25261, 50522, 101044, 202088, 404176, 10331749, 20663498, 41326996, 82653992, 165307984]

約数ペア:

[(1, 165307984), (2, 82653992), (4, 41326996), (8, 20663498), (16, 10331749), (409, 404176), (818, 202088), (1636, 101044), (3272, 50522), (6544, 25261)]