20044040

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{21787}}^1$

素因数の和:21821

約数の個数: 32

約数和(自身を含む): 47062080

約数和(自身を除く): 27018040

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 21787, 43574, 87148, 108935, 174296, 217870, 435740, 501101, 871480, 1002202, 2004404, 2505505, 4008808, 5011010, 10022020, 20044040]

約数ペア:

[(1, 20044040), (2, 10022020), (4, 5011010), (5, 4008808), (8, 2505505), (10, 2004404), (20, 1002202), (23, 871480), (40, 501101), (46, 435740), (92, 217870), (115, 174296), (184, 108935), (230, 87148), (460, 43574), (920, 21787)]