257182448

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:286

約数の個数: 80

約数和(自身を含む): 534251520

約数和(自身を除く): 277069072

約数列:

[1, 2, 4, 8, 16, 31, 62, 67, 71, 109, 124, 134, 142, 218, 248, 268, 284, 436, 496, 536, 568, 872, 1072, 1136, 1744, 2077, 2201, 3379, 4154, 4402, 4757, 6758, 7303, 7739, 8308, 8804, 9514, 13516, 14606, 15478, 16616, 17608, 19028, 27032, 29212, 30956, 33232, 35216, 38056, 54064, 58424, 61912, 76112, 116848, 123824, 147467, 226393, 239909, 294934, 452786, 479818, 518513, 589868, 905572, 959636, 1037026, 1179736, 1811144, 1919272, 2074052, 2359472, 3622288, 3838544, 4148104, 8296208, 16073903, 32147806, 64295612, 128591224, 257182448]

約数ペア:

[(1, 257182448), (2, 128591224), (4, 64295612), (8, 32147806), (16, 16073903), (31, 8296208), (62, 4148104), (67, 3838544), (71, 3622288), (109, 2359472), (124, 2074052), (134, 1919272), (142, 1811144), (218, 1179736), (248, 1037026), (268, 959636), (284, 905572), (436, 589868), (496, 518513), (536, 479818), (568, 452786), (872, 294934), (1072, 239909), (1136, 226393), (1744, 147467), (2077, 123824), (2201, 116848), (3379, 76112), (4154, 61912), (4402, 58424), (4757, 54064), (6758, 38056), (7303, 35216), (7739, 33232), (8308, 30956), (8804, 29212), (9514, 27032), (13516, 19028), (14606, 17608), (15478, 16616)]