8440220

素因数分解:

$2^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{1063}}^1$

素因数の和:1469

約数の個数: 24

約数和(自身を含む): 17785824

約数和(自身を除く): 9345604

約数列:

[1, 2, 4, 5, 10, 20, 397, 794, 1063, 1588, 1985, 2126, 3970, 4252, 5315, 7940, 10630, 21260, 422011, 844022, 1688044, 2110055, 4220110, 8440220]

約数ペア:

[(1, 8440220), (2, 4220110), (4, 2110055), (5, 1688044), (10, 844022), (20, 422011), (397, 21260), (794, 10630), (1063, 7940), (1588, 5315), (1985, 4252), (2126, 3970)]