164098640

素因数分解:

$2^4\times 5^1\times {\mathrm{2051233}}^1$

素因数の和:2051246

約数の個数: 20

約数和(自身を含む): 381529524

約数和(自身を除く): 217430884

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2051233, 4102466, 8204932, 10256165, 16409864, 20512330, 32819728, 41024660, 82049320, 164098640]

約数ペア:

[(1, 164098640), (2, 82049320), (4, 41024660), (5, 32819728), (8, 20512330), (10, 16409864), (16, 10256165), (20, 8204932), (40, 4102466), (80, 2051233)]