31890160

素因数分解:

$2^4\times 5^1\times {\mathrm{398627}}^1$

素因数の和:398640

約数の個数: 20

約数和(自身を含む): 74144808

約数和(自身を除く): 42254648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 398627, 797254, 1594508, 1993135, 3189016, 3986270, 6378032, 7972540, 15945080, 31890160]

約数ペア:

[(1, 31890160), (2, 15945080), (4, 7972540), (5, 6378032), (8, 3986270), (10, 3189016), (16, 1993135), (20, 1594508), (40, 797254), (80, 398627)]