802128820

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{367949}}^1$

素因数の和:368067

約数の個数: 24

約数和(自身を含む): 1699929000

約数和(自身を除く): 897800180

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 367949, 735898, 1471796, 1839745, 3679490, 7358980, 40106441, 80212882, 160425764, 200532205, 401064410, 802128820]

約数ペア:

[(1, 802128820), (2, 401064410), (4, 200532205), (5, 160425764), (10, 80212882), (20, 40106441), (109, 7358980), (218, 3679490), (436, 1839745), (545, 1471796), (1090, 735898), (2180, 367949)]