65616080

素因数分解:

$2^4\times 5^1\times {\mathrm{820201}}^1$

素因数の和:820214

約数の個数: 20

約数和(自身を含む): 152557572

約数和(自身を除く): 86941492

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 820201, 1640402, 3280804, 4101005, 6561608, 8202010, 13123216, 16404020, 32808040, 65616080]

約数ペア:

[(1, 65616080), (2, 32808040), (4, 16404020), (5, 13123216), (8, 8202010), (10, 6561608), (16, 4101005), (20, 3280804), (40, 1640402), (80, 820201)]