80921570

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{425903}}^1$

素因数の和:425929

約数の個数: 16

約数和(自身を含む): 153325440

約数和(自身を除く): 72403870

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 425903, 851806, 2129515, 4259030, 8092157, 16184314, 40460785, 80921570]

約数ペア:

[(1, 80921570), (2, 40460785), (5, 16184314), (10, 8092157), (19, 4259030), (38, 2129515), (95, 851806), (190, 425903)]