81975520

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{991}}^1$

素因数の和:1064

約数の個数: 96

約数和(自身を含む): 215986176

約数和(自身を除く): 134010656

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 47, 55, 80, 88, 94, 110, 160, 176, 188, 220, 235, 352, 376, 440, 470, 517, 752, 880, 940, 991, 1034, 1504, 1760, 1880, 1982, 2068, 2585, 3760, 3964, 4136, 4955, 5170, 7520, 7928, 8272, 9910, 10340, 10901, 15856, 16544, 19820, 20680, 21802, 31712, 39640, 41360, 43604, 46577, 54505, 79280, 82720, 87208, 93154, 109010, 158560, 174416, 186308, 218020, 232885, 348832, 372616, 436040, 465770, 512347, 745232, 872080, 931540, 1024694, 1490464, 1744160, 1863080, 2049388, 2561735, 3726160, 4098776, 5123470, 7452320, 8197552, 10246940, 16395104, 20493880, 40987760, 81975520]

約数ペア:

[(1, 81975520), (2, 40987760), (4, 20493880), (5, 16395104), (8, 10246940), (10, 8197552), (11, 7452320), (16, 5123470), (20, 4098776), (22, 3726160), (32, 2561735), (40, 2049388), (44, 1863080), (47, 1744160), (55, 1490464), (80, 1024694), (88, 931540), (94, 872080), (110, 745232), (160, 512347), (176, 465770), (188, 436040), (220, 372616), (235, 348832), (352, 232885), (376, 218020), (440, 186308), (470, 174416), (517, 158560), (752, 109010), (880, 93154), (940, 87208), (991, 82720), (1034, 79280), (1504, 54505), (1760, 46577), (1880, 43604), (1982, 41360), (2068, 39640), (2585, 31712), (3760, 21802), (3964, 20680), (4136, 19820), (4955, 16544), (5170, 15856), (7520, 10901), (7928, 10340), (8272, 9910)]