68740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{491}}^1$

素因数の和:507

約数の個数: 24

約数和(自身を含む): 165312

約数和(自身を除く): 96572

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 491, 982, 1964, 2455, 3437, 4910, 6874, 9820, 13748, 17185, 34370, 68740]

約数ペア:

[(1, 68740), (2, 34370), (4, 17185), (5, 13748), (7, 9820), (10, 6874), (14, 4910), (20, 3437), (28, 2455), (35, 1964), (70, 982), (140, 491)]