980755280

素因数分解:

$2^4\times 5^1\times {\mathrm{12259441}}^1$

素因数の和:12259454

約数の個数: 20

約数和(自身を含む): 2280256212

約数和(自身を除く): 1299500932

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 12259441, 24518882, 49037764, 61297205, 98075528, 122594410, 196151056, 245188820, 490377640, 980755280]

約数ペア:

[(1, 980755280), (2, 490377640), (4, 245188820), (5, 196151056), (8, 122594410), (10, 98075528), (16, 61297205), (20, 49037764), (40, 24518882), (80, 12259441)]