220376080

素因数分解:

$2^4\times 5^1\times {\mathrm{2754701}}^1$

素因数の和:2754714

約数の個数: 20

約数和(自身を含む): 512374572

約数和(自身を除く): 291998492

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2754701, 5509402, 11018804, 13773505, 22037608, 27547010, 44075216, 55094020, 110188040, 220376080]

約数ペア:

[(1, 220376080), (2, 110188040), (4, 55094020), (5, 44075216), (8, 27547010), (10, 22037608), (16, 13773505), (20, 11018804), (40, 5509402), (80, 2754701)]