215821256

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1$

素因数の和:235

約数の個数: 128

約数和(自身を含む): 517570560

約数和(自身を除く): 301749304

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 31, 34, 56, 62, 68, 71, 103, 119, 124, 136, 142, 206, 217, 238, 248, 284, 412, 434, 476, 497, 527, 568, 721, 824, 868, 952, 994, 1054, 1207, 1442, 1736, 1751, 1988, 2108, 2201, 2414, 2884, 3193, 3502, 3689, 3976, 4216, 4402, 4828, 5768, 6386, 7004, 7313, 7378, 8449, 8804, 9656, 12257, 12772, 14008, 14626, 14756, 15407, 16898, 17608, 22351, 24514, 25544, 29252, 29512, 30814, 33796, 37417, 44702, 49028, 51191, 54281, 58504, 61628, 67592, 74834, 89404, 98056, 102382, 108562, 123256, 124321, 149668, 178808, 204764, 217124, 226703, 248642, 261919, 299336, 379967, 409528, 434248, 453406, 497284, 523838, 759934, 870247, 906812, 994568, 1047676, 1519868, 1586921, 1740494, 1813624, 2095352, 3039736, 3173842, 3480988, 3853951, 6347684, 6961976, 7707902, 12695368, 15415804, 26977657, 30831608, 53955314, 107910628, 215821256]

約数ペア:

[(1, 215821256), (2, 107910628), (4, 53955314), (7, 30831608), (8, 26977657), (14, 15415804), (17, 12695368), (28, 7707902), (31, 6961976), (34, 6347684), (56, 3853951), (62, 3480988), (68, 3173842), (71, 3039736), (103, 2095352), (119, 1813624), (124, 1740494), (136, 1586921), (142, 1519868), (206, 1047676), (217, 994568), (238, 906812), (248, 870247), (284, 759934), (412, 523838), (434, 497284), (476, 453406), (497, 434248), (527, 409528), (568, 379967), (721, 299336), (824, 261919), (868, 248642), (952, 226703), (994, 217124), (1054, 204764), (1207, 178808), (1442, 149668), (1736, 124321), (1751, 123256), (1988, 108562), (2108, 102382), (2201, 98056), (2414, 89404), (2884, 74834), (3193, 67592), (3502, 61628), (3689, 58504), (3976, 54281), (4216, 51191), (4402, 49028), (4828, 44702), (5768, 37417), (6386, 33796), (7004, 30814), (7313, 29512), (7378, 29252), (8449, 25544), (8804, 24514), (9656, 22351), (12257, 17608), (12772, 16898), (14008, 15407), (14626, 14756)]