85709740

素因数分解:

$2^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{10687}}^1$

素因数の和:11097

約数の個数: 24

約数和(自身を含む): 180456192

約数和(自身を除く): 94746452

約数列:

[1, 2, 4, 5, 10, 20, 401, 802, 1604, 2005, 4010, 8020, 10687, 21374, 42748, 53435, 106870, 213740, 4285487, 8570974, 17141948, 21427435, 42854870, 85709740]

約数ペア:

[(1, 85709740), (2, 42854870), (4, 21427435), (5, 17141948), (10, 8570974), (20, 4285487), (401, 213740), (802, 106870), (1604, 53435), (2005, 42748), (4010, 21374), (8020, 10687)]