128018360

素因数分解:

$2^3\times 5^1\times {\mathrm{3200459}}^1$

素因数の和:3200470

約数の個数: 16

約数和(自身を含む): 288041400

約数和(自身を除く): 160023040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3200459, 6400918, 12801836, 16002295, 25603672, 32004590, 64009180, 128018360]

約数ペア:

[(1, 128018360), (2, 64009180), (4, 32004590), (5, 25603672), (8, 16002295), (10, 12801836), (20, 6400918), (40, 3200459)]