660944

素因数分解:

$2^4\times {\mathrm{101}}^1\times {\mathrm{409}}^1$

素因数の和:518

約数の個数: 20

約数和(自身を含む): 1296420

約数和(自身を除く): 635476

約数列:

[1, 2, 4, 8, 16, 101, 202, 404, 409, 808, 818, 1616, 1636, 3272, 6544, 41309, 82618, 165236, 330472, 660944]

約数ペア:

[(1, 660944), (2, 330472), (4, 165236), (8, 82618), (16, 41309), (101, 6544), (202, 3272), (404, 1636), (409, 1616), (808, 818)]