28280560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{4591}}^1$

素因数の和:4622

約数の個数: 80

約数和(自身を含む): 81994752

約数和(自身を除く): 53714192

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 140, 154, 176, 220, 280, 308, 385, 440, 560, 616, 770, 880, 1232, 1540, 3080, 4591, 6160, 9182, 18364, 22955, 32137, 36728, 45910, 50501, 64274, 73456, 91820, 101002, 128548, 160685, 183640, 202004, 252505, 257096, 321370, 353507, 367280, 404008, 505010, 514192, 642740, 707014, 808016, 1010020, 1285480, 1414028, 1767535, 2020040, 2570960, 2828056, 3535070, 4040080, 5656112, 7070140, 14140280, 28280560]

約数ペア:

[(1, 28280560), (2, 14140280), (4, 7070140), (5, 5656112), (7, 4040080), (8, 3535070), (10, 2828056), (11, 2570960), (14, 2020040), (16, 1767535), (20, 1414028), (22, 1285480), (28, 1010020), (35, 808016), (40, 707014), (44, 642740), (55, 514192), (56, 505010), (70, 404008), (77, 367280), (80, 353507), (88, 321370), (110, 257096), (112, 252505), (140, 202004), (154, 183640), (176, 160685), (220, 128548), (280, 101002), (308, 91820), (385, 73456), (440, 64274), (560, 50501), (616, 45910), (770, 36728), (880, 32137), (1232, 22955), (1540, 18364), (3080, 9182), (4591, 6160)]