278681480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{90481}}^1$

素因数の和:90510

約数の個数: 64

約数和(自身を含む): 781764480

約数和(自身を除く): 503083000

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, 280, 308, 385, 440, 616, 770, 1540, 3080, 90481, 180962, 361924, 452405, 633367, 723848, 904810, 995291, 1266734, 1809620, 1990582, 2533468, 3166835, 3619240, 3981164, 4976455, 5066936, 6333670, 6967037, 7962328, 9952910, 12667340, 13934074, 19905820, 25334680, 27868148, 34835185, 39811640, 55736296, 69670370, 139340740, 278681480]

約数ペア:

[(1, 278681480), (2, 139340740), (4, 69670370), (5, 55736296), (7, 39811640), (8, 34835185), (10, 27868148), (11, 25334680), (14, 19905820), (20, 13934074), (22, 12667340), (28, 9952910), (35, 7962328), (40, 6967037), (44, 6333670), (55, 5066936), (56, 4976455), (70, 3981164), (77, 3619240), (88, 3166835), (110, 2533468), (140, 1990582), (154, 1809620), (220, 1266734), (280, 995291), (308, 904810), (385, 723848), (440, 633367), (616, 452405), (770, 361924), (1540, 180962), (3080, 90481)]