220755280

素因数分解:

$2^4\times 5^1\times {\mathrm{2759441}}^1$

素因数の和:2759454

約数の個数: 20

約数和(自身を含む): 513256212

約数和(自身を除く): 292500932

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2759441, 5518882, 11037764, 13797205, 22075528, 27594410, 44151056, 55188820, 110377640, 220755280]

約数ペア:

[(1, 220755280), (2, 110377640), (4, 55188820), (5, 44151056), (8, 27594410), (10, 22075528), (16, 13797205), (20, 11037764), (40, 5518882), (80, 2759441)]