3898540

素因数分解:

$2^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{491}}^1$

素因数の和:897

約数の個数: 24

約数和(自身を含む): 8224272

約数和(自身を除く): 4325732

約数列:

[1, 2, 4, 5, 10, 20, 397, 491, 794, 982, 1588, 1964, 1985, 2455, 3970, 4910, 7940, 9820, 194927, 389854, 779708, 974635, 1949270, 3898540]

約数ペア:

[(1, 3898540), (2, 1949270), (4, 974635), (5, 779708), (10, 389854), (20, 194927), (397, 9820), (491, 7940), (794, 4910), (982, 3970), (1588, 2455), (1964, 1985)]