17908880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{433}}^1$

素因数の和:504

約数の個数: 80

約数和(自身を含む): 46497024

約数和(自身を除く): 28588144

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 47, 55, 80, 88, 94, 110, 176, 188, 220, 235, 376, 433, 440, 470, 517, 752, 866, 880, 940, 1034, 1732, 1880, 2068, 2165, 2585, 3464, 3760, 4136, 4330, 4763, 5170, 6928, 8272, 8660, 9526, 10340, 17320, 19052, 20351, 20680, 23815, 34640, 38104, 40702, 41360, 47630, 76208, 81404, 95260, 101755, 162808, 190520, 203510, 223861, 325616, 381040, 407020, 447722, 814040, 895444, 1119305, 1628080, 1790888, 2238610, 3581776, 4477220, 8954440, 17908880]

約数ペア:

[(1, 17908880), (2, 8954440), (4, 4477220), (5, 3581776), (8, 2238610), (10, 1790888), (11, 1628080), (16, 1119305), (20, 895444), (22, 814040), (40, 447722), (44, 407020), (47, 381040), (55, 325616), (80, 223861), (88, 203510), (94, 190520), (110, 162808), (176, 101755), (188, 95260), (220, 81404), (235, 76208), (376, 47630), (433, 41360), (440, 40702), (470, 38104), (517, 34640), (752, 23815), (866, 20680), (880, 20351), (940, 19052), (1034, 17320), (1732, 10340), (1880, 9526), (2068, 8660), (2165, 8272), (2585, 6928), (3464, 5170), (3760, 4763), (4136, 4330)]