2018178280

素因数分解:

$2^3\times 5^1\times {\mathrm{2221}}^1\times {\mathrm{22717}}^1$

素因数の和:24949

約数の個数: 32

約数和(自身を含む): 4543145640

約数和(自身を除く): 2524967360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2221, 4442, 8884, 11105, 17768, 22210, 22717, 44420, 45434, 88840, 90868, 113585, 181736, 227170, 454340, 908680, 50454457, 100908914, 201817828, 252272285, 403635656, 504544570, 1009089140, 2018178280]

約数ペア:

[(1, 2018178280), (2, 1009089140), (4, 504544570), (5, 403635656), (8, 252272285), (10, 201817828), (20, 100908914), (40, 50454457), (2221, 908680), (4442, 454340), (8884, 227170), (11105, 181736), (17768, 113585), (22210, 90868), (22717, 88840), (44420, 45434)]