20183680

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:138

約数の個数: 128

約数和(自身を含む): 54639360

約数和(自身を除く): 34455680

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 47, 55, 61, 64, 80, 88, 94, 110, 122, 128, 160, 176, 188, 220, 235, 244, 305, 320, 352, 376, 440, 470, 488, 517, 610, 640, 671, 704, 752, 880, 940, 976, 1034, 1220, 1342, 1408, 1504, 1760, 1880, 1952, 2068, 2440, 2585, 2684, 2867, 3008, 3355, 3520, 3760, 3904, 4136, 4880, 5170, 5368, 5734, 6016, 6710, 7040, 7520, 7808, 8272, 9760, 10340, 10736, 11468, 13420, 14335, 15040, 16544, 19520, 20680, 21472, 22936, 26840, 28670, 30080, 31537, 33088, 39040, 41360, 42944, 45872, 53680, 57340, 63074, 66176, 82720, 85888, 91744, 107360, 114680, 126148, 157685, 165440, 183488, 214720, 229360, 252296, 315370, 330880, 366976, 429440, 458720, 504592, 630740, 917440, 1009184, 1261480, 1834880, 2018368, 2522960, 4036736, 5045920, 10091840, 20183680]

約数ペア:

[(1, 20183680), (2, 10091840), (4, 5045920), (5, 4036736), (8, 2522960), (10, 2018368), (11, 1834880), (16, 1261480), (20, 1009184), (22, 917440), (32, 630740), (40, 504592), (44, 458720), (47, 429440), (55, 366976), (61, 330880), (64, 315370), (80, 252296), (88, 229360), (94, 214720), (110, 183488), (122, 165440), (128, 157685), (160, 126148), (176, 114680), (188, 107360), (220, 91744), (235, 85888), (244, 82720), (305, 66176), (320, 63074), (352, 57340), (376, 53680), (440, 45872), (470, 42944), (488, 41360), (517, 39040), (610, 33088), (640, 31537), (671, 30080), (704, 28670), (752, 26840), (880, 22936), (940, 21472), (976, 20680), (1034, 19520), (1220, 16544), (1342, 15040), (1408, 14335), (1504, 13420), (1760, 11468), (1880, 10736), (1952, 10340), (2068, 9760), (2440, 8272), (2585, 7808), (2684, 7520), (2867, 7040), (3008, 6710), (3355, 6016), (3520, 5734), (3760, 5368), (3904, 5170), (4136, 4880)]