89970910

素因数分解:

$2^1\times 5^1\times {\mathrm{2179}}^1\times {\mathrm{4129}}^1$

素因数の和:6315

約数の個数: 16

約数和(自身を含む): 162061200

約数和(自身を除く): 72090290

約数列:

[1, 2, 5, 10, 2179, 4129, 4358, 8258, 10895, 20645, 21790, 41290, 8997091, 17994182, 44985455, 89970910]

約数ペア:

[(1, 89970910), (2, 44985455), (5, 17994182), (10, 8997091), (2179, 41290), (4129, 21790), (4358, 20645), (8258, 10895)]