30989080

素因数分解:

$2^3\times 5^1\times {\mathrm{521}}^1\times {\mathrm{1487}}^1$

素因数の和:2019

約数の個数: 32

約数和(自身を含む): 69906240

約数和(自身を除く): 38917160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 521, 1042, 1487, 2084, 2605, 2974, 4168, 5210, 5948, 7435, 10420, 11896, 14870, 20840, 29740, 59480, 774727, 1549454, 3098908, 3873635, 6197816, 7747270, 15494540, 30989080]

約数ペア:

[(1, 30989080), (2, 15494540), (4, 7747270), (5, 6197816), (8, 3873635), (10, 3098908), (20, 1549454), (40, 774727), (521, 59480), (1042, 29740), (1487, 20840), (2084, 14870), (2605, 11896), (2974, 10420), (4168, 7435), (5210, 5948)]