255103640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{179}}^1$

素因数の和:321

約数の個数: 128

約数和(自身を含む): 653184000

約数和(自身を除く): 398080360

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 41, 44, 55, 79, 82, 88, 110, 158, 164, 179, 205, 220, 316, 328, 358, 395, 410, 440, 451, 632, 716, 790, 820, 869, 895, 902, 1432, 1580, 1640, 1738, 1790, 1804, 1969, 2255, 3160, 3239, 3476, 3580, 3608, 3938, 4345, 4510, 6478, 6952, 7160, 7339, 7876, 8690, 9020, 9845, 12956, 14141, 14678, 15752, 16195, 17380, 18040, 19690, 25912, 28282, 29356, 32390, 34760, 35629, 36695, 39380, 56564, 58712, 64780, 70705, 71258, 73390, 78760, 80729, 113128, 129560, 141410, 142516, 146780, 155551, 161458, 178145, 282820, 285032, 293560, 311102, 322916, 356290, 403645, 565640, 579781, 622204, 645832, 712580, 777755, 807290, 1159562, 1244408, 1425160, 1555510, 1614580, 2319124, 2898905, 3111020, 3229160, 4638248, 5797810, 6222040, 6377591, 11595620, 12755182, 23191240, 25510364, 31887955, 51020728, 63775910, 127551820, 255103640]

約数ペア:

[(1, 255103640), (2, 127551820), (4, 63775910), (5, 51020728), (8, 31887955), (10, 25510364), (11, 23191240), (20, 12755182), (22, 11595620), (40, 6377591), (41, 6222040), (44, 5797810), (55, 4638248), (79, 3229160), (82, 3111020), (88, 2898905), (110, 2319124), (158, 1614580), (164, 1555510), (179, 1425160), (205, 1244408), (220, 1159562), (316, 807290), (328, 777755), (358, 712580), (395, 645832), (410, 622204), (440, 579781), (451, 565640), (632, 403645), (716, 356290), (790, 322916), (820, 311102), (869, 293560), (895, 285032), (902, 282820), (1432, 178145), (1580, 161458), (1640, 155551), (1738, 146780), (1790, 142516), (1804, 141410), (1969, 129560), (2255, 113128), (3160, 80729), (3239, 78760), (3476, 73390), (3580, 71258), (3608, 70705), (3938, 64780), (4345, 58712), (4510, 56564), (6478, 39380), (6952, 36695), (7160, 35629), (7339, 34760), (7876, 32390), (8690, 29356), (9020, 28282), (9845, 25912), (12956, 19690), (14141, 18040), (14678, 17380), (15752, 16195)]