28665560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{227}}^1$

素因数の和:297

約数の個数: 128

約数和(自身を含む): 82736640

約数和(自身を除く): 54071080

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 41, 44, 55, 56, 70, 77, 82, 88, 110, 140, 154, 164, 205, 220, 227, 280, 287, 308, 328, 385, 410, 440, 451, 454, 574, 616, 770, 820, 902, 908, 1135, 1148, 1435, 1540, 1589, 1640, 1804, 1816, 2255, 2270, 2296, 2497, 2870, 3080, 3157, 3178, 3608, 4510, 4540, 4994, 5740, 6314, 6356, 7945, 9020, 9080, 9307, 9988, 11480, 12485, 12628, 12712, 15785, 15890, 17479, 18040, 18614, 19976, 24970, 25256, 31570, 31780, 34958, 37228, 46535, 49940, 63140, 63560, 65149, 69916, 74456, 87395, 93070, 99880, 102377, 126280, 130298, 139832, 174790, 186140, 204754, 260596, 325745, 349580, 372280, 409508, 511885, 521192, 651490, 699160, 716639, 819016, 1023770, 1302980, 1433278, 2047540, 2605960, 2866556, 3583195, 4095080, 5733112, 7166390, 14332780, 28665560]

約数ペア:

[(1, 28665560), (2, 14332780), (4, 7166390), (5, 5733112), (7, 4095080), (8, 3583195), (10, 2866556), (11, 2605960), (14, 2047540), (20, 1433278), (22, 1302980), (28, 1023770), (35, 819016), (40, 716639), (41, 699160), (44, 651490), (55, 521192), (56, 511885), (70, 409508), (77, 372280), (82, 349580), (88, 325745), (110, 260596), (140, 204754), (154, 186140), (164, 174790), (205, 139832), (220, 130298), (227, 126280), (280, 102377), (287, 99880), (308, 93070), (328, 87395), (385, 74456), (410, 69916), (440, 65149), (451, 63560), (454, 63140), (574, 49940), (616, 46535), (770, 37228), (820, 34958), (902, 31780), (908, 31570), (1135, 25256), (1148, 24970), (1435, 19976), (1540, 18614), (1589, 18040), (1640, 17479), (1804, 15890), (1816, 15785), (2255, 12712), (2270, 12628), (2296, 12485), (2497, 11480), (2870, 9988), (3080, 9307), (3157, 9080), (3178, 9020), (3608, 7945), (4510, 6356), (4540, 6314), (4994, 5740)]