289746728

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{17921}}^1$

素因数の和:18017

約数の個数: 32

約数和(自身を含む): 567768960

約数和(自身を除く): 278022232

約数列:

[1, 2, 4, 8, 43, 47, 86, 94, 172, 188, 344, 376, 2021, 4042, 8084, 16168, 17921, 35842, 71684, 143368, 770603, 842287, 1541206, 1684574, 3082412, 3369148, 6164824, 6738296, 36218341, 72436682, 144873364, 289746728]

約数ペア:

[(1, 289746728), (2, 144873364), (4, 72436682), (8, 36218341), (43, 6738296), (47, 6164824), (86, 3369148), (94, 3082412), (172, 1684574), (188, 1541206), (344, 842287), (376, 770603), (2021, 143368), (4042, 71684), (8084, 35842), (16168, 17921)]