88898980

素因数分解:

$2^2\times 5^1\times {\mathrm{4444949}}^1$

素因数の和:4444958

約数の個数: 12

約数和(自身を含む): 186687900

約数和(自身を除く): 97788920

約数列:

[1, 2, 4, 5, 10, 20, 4444949, 8889898, 17779796, 22224745, 44449490, 88898980]

約数ペア:

[(1, 88898980), (2, 44449490), (4, 22224745), (5, 17779796), (10, 8889898), (20, 4444949)]