18520220

素因数分解:

$2^2\times 5^1\times {\mathrm{277}}^1\times {\mathrm{3343}}^1$

素因数の和:3629

約数の個数: 24

約数和(自身を含む): 39044544

約数和(自身を除く): 20524324

約数列:

[1, 2, 4, 5, 10, 20, 277, 554, 1108, 1385, 2770, 3343, 5540, 6686, 13372, 16715, 33430, 66860, 926011, 1852022, 3704044, 4630055, 9260110, 18520220]

約数ペア:

[(1, 18520220), (2, 9260110), (4, 4630055), (5, 3704044), (10, 1852022), (20, 926011), (277, 66860), (554, 33430), (1108, 16715), (1385, 13372), (2770, 6686), (3343, 5540)]