18140320

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^2\times {\mathrm{937}}^1$

素因数の和:974

約数の個数: 72

約数和(自身を含む): 47157012

約数和(自身を除く): 29016692

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 121, 160, 176, 220, 242, 352, 440, 484, 605, 880, 937, 968, 1210, 1760, 1874, 1936, 2420, 3748, 3872, 4685, 4840, 7496, 9370, 9680, 10307, 14992, 18740, 19360, 20614, 29984, 37480, 41228, 51535, 74960, 82456, 103070, 113377, 149920, 164912, 206140, 226754, 329824, 412280, 453508, 566885, 824560, 907016, 1133770, 1649120, 1814032, 2267540, 3628064, 4535080, 9070160, 18140320]

約数ペア:

[(1, 18140320), (2, 9070160), (4, 4535080), (5, 3628064), (8, 2267540), (10, 1814032), (11, 1649120), (16, 1133770), (20, 907016), (22, 824560), (32, 566885), (40, 453508), (44, 412280), (55, 329824), (80, 226754), (88, 206140), (110, 164912), (121, 149920), (160, 113377), (176, 103070), (220, 82456), (242, 74960), (352, 51535), (440, 41228), (484, 37480), (605, 29984), (880, 20614), (937, 19360), (968, 18740), (1210, 14992), (1760, 10307), (1874, 9680), (1936, 9370), (2420, 7496), (3748, 4840), (3872, 4685)]