27981820

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{32537}}^1$

素因数の和:32589

約数の個数: 24

約数和(自身を含む): 60130224

約数和(自身を除く): 32148404

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 32537, 65074, 130148, 162685, 325370, 650740, 1399091, 2798182, 5596364, 6995455, 13990910, 27981820]

約数ペア:

[(1, 27981820), (2, 13990910), (4, 6995455), (5, 5596364), (10, 2798182), (20, 1399091), (43, 650740), (86, 325370), (172, 162685), (215, 130148), (430, 65074), (860, 32537)]