890309080

素因数分解:

$2^3\times 5^1\times {\mathrm{22257727}}^1$

素因数の和:22257738

約数の個数: 16

約数和(自身を含む): 2003195520

約数和(自身を除く): 1112886440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 22257727, 44515454, 89030908, 111288635, 178061816, 222577270, 445154540, 890309080]

約数ペア:

[(1, 890309080), (2, 445154540), (4, 222577270), (5, 178061816), (8, 111288635), (10, 89030908), (20, 44515454), (40, 22257727)]