100868740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{720491}}^1$

素因数の和:720507

約数の個数: 24

約数和(自身を含む): 242085312

約数和(自身を除く): 141216572

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 720491, 1440982, 2881964, 3602455, 5043437, 7204910, 10086874, 14409820, 20173748, 25217185, 50434370, 100868740]

約数ペア:

[(1, 100868740), (2, 50434370), (4, 25217185), (5, 20173748), (7, 14409820), (10, 10086874), (14, 7204910), (20, 5043437), (28, 3602455), (35, 2881964), (70, 1440982), (140, 720491)]