249619480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{137}}^1$

素因数の和:301

約数の個数: 128

約数和(自身を含む): 638487360

約数和(自身を除く): 388867880

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 41, 44, 55, 82, 88, 101, 110, 137, 164, 202, 205, 220, 274, 328, 404, 410, 440, 451, 505, 548, 685, 808, 820, 902, 1010, 1096, 1111, 1370, 1507, 1640, 1804, 2020, 2222, 2255, 2740, 3014, 3608, 4040, 4141, 4444, 4510, 5480, 5555, 5617, 6028, 7535, 8282, 8888, 9020, 11110, 11234, 12056, 13837, 15070, 16564, 18040, 20705, 22220, 22468, 27674, 28085, 30140, 33128, 41410, 44440, 44936, 45551, 55348, 56170, 60280, 61787, 69185, 82820, 91102, 110696, 112340, 123574, 138370, 152207, 165640, 182204, 224680, 227755, 247148, 276740, 304414, 308935, 364408, 455510, 494296, 553480, 567317, 608828, 617870, 761035, 911020, 1134634, 1217656, 1235740, 1522070, 1822040, 2269268, 2471480, 2836585, 3044140, 4538536, 5673170, 6088280, 6240487, 11346340, 12480974, 22692680, 24961948, 31202435, 49923896, 62404870, 124809740, 249619480]

約数ペア:

[(1, 249619480), (2, 124809740), (4, 62404870), (5, 49923896), (8, 31202435), (10, 24961948), (11, 22692680), (20, 12480974), (22, 11346340), (40, 6240487), (41, 6088280), (44, 5673170), (55, 4538536), (82, 3044140), (88, 2836585), (101, 2471480), (110, 2269268), (137, 1822040), (164, 1522070), (202, 1235740), (205, 1217656), (220, 1134634), (274, 911020), (328, 761035), (404, 617870), (410, 608828), (440, 567317), (451, 553480), (505, 494296), (548, 455510), (685, 364408), (808, 308935), (820, 304414), (902, 276740), (1010, 247148), (1096, 227755), (1111, 224680), (1370, 182204), (1507, 165640), (1640, 152207), (1804, 138370), (2020, 123574), (2222, 112340), (2255, 110696), (2740, 91102), (3014, 82820), (3608, 69185), (4040, 61787), (4141, 60280), (4444, 56170), (4510, 55348), (5480, 45551), (5555, 44936), (5617, 44440), (6028, 41410), (7535, 33128), (8282, 30140), (8888, 28085), (9020, 27674), (11110, 22468), (11234, 22220), (12056, 20705), (13837, 18040), (15070, 16564)]