90228740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{644491}}^1$

素因数の和:644507

約数の個数: 24

約数和(自身を含む): 216549312

約数和(自身を除く): 126320572

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 644491, 1288982, 2577964, 3222455, 4511437, 6444910, 9022874, 12889820, 18045748, 22557185, 45114370, 90228740]

約数ペア:

[(1, 90228740), (2, 45114370), (4, 22557185), (5, 18045748), (7, 12889820), (10, 9022874), (14, 6444910), (20, 4511437), (28, 3222455), (35, 2577964), (70, 1288982), (140, 644491)]