213040520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{263}}^2$

素因数の和:555

約数の個数: 96

約数和(自身を含む): 599901120

約数和(自身を除く): 386860600

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 263, 280, 308, 385, 440, 526, 616, 770, 1052, 1315, 1540, 1841, 2104, 2630, 2893, 3080, 3682, 5260, 5786, 7364, 9205, 10520, 11572, 14465, 14728, 18410, 20251, 23144, 28930, 36820, 40502, 57860, 69169, 73640, 81004, 101255, 115720, 138338, 162008, 202510, 276676, 345845, 405020, 484183, 553352, 691690, 760859, 810040, 968366, 1383380, 1521718, 1936732, 2420915, 2766760, 3043436, 3804295, 3873464, 4841830, 5326013, 6086872, 7608590, 9683660, 10652026, 15217180, 19367320, 21304052, 26630065, 30434360, 42608104, 53260130, 106520260, 213040520]

約数ペア:

[(1, 213040520), (2, 106520260), (4, 53260130), (5, 42608104), (7, 30434360), (8, 26630065), (10, 21304052), (11, 19367320), (14, 15217180), (20, 10652026), (22, 9683660), (28, 7608590), (35, 6086872), (40, 5326013), (44, 4841830), (55, 3873464), (56, 3804295), (70, 3043436), (77, 2766760), (88, 2420915), (110, 1936732), (140, 1521718), (154, 1383380), (220, 968366), (263, 810040), (280, 760859), (308, 691690), (385, 553352), (440, 484183), (526, 405020), (616, 345845), (770, 276676), (1052, 202510), (1315, 162008), (1540, 138338), (1841, 115720), (2104, 101255), (2630, 81004), (2893, 73640), (3080, 69169), (3682, 57860), (5260, 40502), (5786, 36820), (7364, 28930), (9205, 23144), (10520, 20251), (11572, 18410), (14465, 14728)]