221920816

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{271}}^1$

素因数の和:450

約数の個数: 80

約数和(自身を含む): 483524608

約数和(自身を除く): 261603792

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 127, 208, 248, 254, 271, 403, 496, 508, 542, 806, 1016, 1084, 1612, 1651, 2032, 2168, 3224, 3302, 3523, 3937, 4336, 6448, 6604, 7046, 7874, 8401, 13208, 14092, 15748, 16802, 26416, 28184, 31496, 33604, 34417, 51181, 56368, 62992, 67208, 68834, 102362, 109213, 134416, 137668, 204724, 218426, 275336, 409448, 436852, 447421, 550672, 818896, 873704, 894842, 1066927, 1747408, 1789684, 2133854, 3579368, 4267708, 7158736, 8535416, 13870051, 17070832, 27740102, 55480204, 110960408, 221920816]

約数ペア:

[(1, 221920816), (2, 110960408), (4, 55480204), (8, 27740102), (13, 17070832), (16, 13870051), (26, 8535416), (31, 7158736), (52, 4267708), (62, 3579368), (104, 2133854), (124, 1789684), (127, 1747408), (208, 1066927), (248, 894842), (254, 873704), (271, 818896), (403, 550672), (496, 447421), (508, 436852), (542, 409448), (806, 275336), (1016, 218426), (1084, 204724), (1612, 137668), (1651, 134416), (2032, 109213), (2168, 102362), (3224, 68834), (3302, 67208), (3523, 62992), (3937, 56368), (4336, 51181), (6448, 34417), (6604, 33604), (7046, 31496), (7874, 28184), (8401, 26416), (13208, 16802), (14092, 15748)]