27881140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{199151}}^1$

素因数の和:199167

約数の個数: 24

約数和(自身を含む): 66915072

約数和(自身を除く): 39033932

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 199151, 398302, 796604, 995755, 1394057, 1991510, 2788114, 3983020, 5576228, 6970285, 13940570, 27881140]

約数ペア:

[(1, 27881140), (2, 13940570), (4, 6970285), (5, 5576228), (7, 3983020), (10, 2788114), (14, 1991510), (20, 1394057), (28, 995755), (35, 796604), (70, 398302), (140, 199151)]