217857640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{5441}}^1$

素因数の和:5483

約数の個数: 128

約数和(自身を含む): 658264320

約数和(自身を除く): 440406680

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 20, 22, 26, 28, 35, 40, 44, 52, 55, 56, 65, 70, 77, 88, 91, 104, 110, 130, 140, 143, 154, 182, 220, 260, 280, 286, 308, 364, 385, 440, 455, 520, 572, 616, 715, 728, 770, 910, 1001, 1144, 1430, 1540, 1820, 2002, 2860, 3080, 3640, 4004, 5005, 5441, 5720, 8008, 10010, 10882, 20020, 21764, 27205, 38087, 40040, 43528, 54410, 59851, 70733, 76174, 108820, 119702, 141466, 152348, 190435, 217640, 239404, 282932, 299255, 304696, 353665, 380870, 418957, 478808, 495131, 565864, 598510, 707330, 761740, 778063, 837914, 990262, 1197020, 1414660, 1523480, 1556126, 1675828, 1980524, 2094785, 2394040, 2475655, 2829320, 3112252, 3351656, 3890315, 3961048, 4189570, 4951310, 5446441, 6224504, 7780630, 8379140, 9902620, 10892882, 15561260, 16758280, 19805240, 21785764, 27232205, 31122520, 43571528, 54464410, 108928820, 217857640]

約数ペア:

[(1, 217857640), (2, 108928820), (4, 54464410), (5, 43571528), (7, 31122520), (8, 27232205), (10, 21785764), (11, 19805240), (13, 16758280), (14, 15561260), (20, 10892882), (22, 9902620), (26, 8379140), (28, 7780630), (35, 6224504), (40, 5446441), (44, 4951310), (52, 4189570), (55, 3961048), (56, 3890315), (65, 3351656), (70, 3112252), (77, 2829320), (88, 2475655), (91, 2394040), (104, 2094785), (110, 1980524), (130, 1675828), (140, 1556126), (143, 1523480), (154, 1414660), (182, 1197020), (220, 990262), (260, 837914), (280, 778063), (286, 761740), (308, 707330), (364, 598510), (385, 565864), (440, 495131), (455, 478808), (520, 418957), (572, 380870), (616, 353665), (715, 304696), (728, 299255), (770, 282932), (910, 239404), (1001, 217640), (1144, 190435), (1430, 152348), (1540, 141466), (1820, 119702), (2002, 108820), (2860, 76174), (3080, 70733), (3640, 59851), (4004, 54410), (5005, 43528), (5441, 40040), (5720, 38087), (8008, 27205), (10010, 21764), (10882, 20020)]