39540080

素因数分解:

$2^4\times 5^1\times {\mathrm{494251}}^1$

素因数の和:494264

約数の個数: 20

約数和(自身を含む): 91930872

約数和(自身を除く): 52390792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 494251, 988502, 1977004, 2471255, 3954008, 4942510, 7908016, 9885020, 19770040, 39540080]

約数ペア:

[(1, 39540080), (2, 19770040), (4, 9885020), (5, 7908016), (8, 4942510), (10, 3954008), (16, 2471255), (20, 1977004), (40, 988502), (80, 494251)]