19172560

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{21787}}^1$

素因数の和:21811

約数の個数: 40

約数和(自身を含む): 48630816

約数和(自身を除く): 29458256

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 21787, 43574, 87148, 108935, 174296, 217870, 239657, 348592, 435740, 479314, 871480, 958628, 1198285, 1742960, 1917256, 2396570, 3834512, 4793140, 9586280, 19172560]

約数ペア:

[(1, 19172560), (2, 9586280), (4, 4793140), (5, 3834512), (8, 2396570), (10, 1917256), (11, 1742960), (16, 1198285), (20, 958628), (22, 871480), (40, 479314), (44, 435740), (55, 348592), (80, 239657), (88, 217870), (110, 174296), (176, 108935), (220, 87148), (440, 43574), (880, 21787)]