78896140

素因数分解:

$2^2\times 5^1\times {\mathrm{3944807}}^1$

素因数の和:3944816

約数の個数: 12

約数和(自身を含む): 165681936

約数和(自身を除く): 86785796

約数列:

[1, 2, 4, 5, 10, 20, 3944807, 7889614, 15779228, 19724035, 39448070, 78896140]

約数ペア:

[(1, 78896140), (2, 39448070), (4, 19724035), (5, 15779228), (10, 7889614), (20, 3944807)]