66428740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{474491}}^1$

素因数の和:474507

約数の個数: 24

約数和(自身を含む): 159429312

約数和(自身を除く): 93000572

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 474491, 948982, 1897964, 2372455, 3321437, 4744910, 6642874, 9489820, 13285748, 16607185, 33214370, 66428740]

約数ペア:

[(1, 66428740), (2, 33214370), (4, 16607185), (5, 13285748), (7, 9489820), (10, 6642874), (14, 4744910), (20, 3321437), (28, 2372455), (35, 1897964), (70, 948982), (140, 474491)]