18289240

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{8627}}^1$

素因数の和:8691

約数の個数: 32

約数和(自身を含む): 41932080

約数和(自身を除く): 23642840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 8627, 17254, 34508, 43135, 69016, 86270, 172540, 345080, 457231, 914462, 1828924, 2286155, 3657848, 4572310, 9144620, 18289240]

約数ペア:

[(1, 18289240), (2, 9144620), (4, 4572310), (5, 3657848), (8, 2286155), (10, 1828924), (20, 914462), (40, 457231), (53, 345080), (106, 172540), (212, 86270), (265, 69016), (424, 43135), (530, 34508), (1060, 17254), (2120, 8627)]