7940320340

素因数分解:

$2^2\times 5^1\times {\mathrm{397016017}}^1$

素因数の和:397016026

約数の個数: 12

約数和(自身を含む): 16674672756

約数和(自身を除く): 8734352416

約数列:

[1, 2, 4, 5, 10, 20, 397016017, 794032034, 1588064068, 1985080085, 3970160170, 7940320340]

約数ペア:

[(1, 7940320340), (2, 3970160170), (4, 1985080085), (5, 1588064068), (10, 794032034), (20, 397016017)]