2128280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{691}}^1$

素因数の和:720

約数の個数: 64

約数和(自身を含む): 5978880

約数和(自身を除く): 3850600

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, 691, 770, 1382, 1540, 2764, 3080, 3455, 4837, 5528, 6910, 7601, 9674, 13820, 15202, 19348, 24185, 27640, 30404, 38005, 38696, 48370, 53207, 60808, 76010, 96740, 106414, 152020, 193480, 212828, 266035, 304040, 425656, 532070, 1064140, 2128280]

約数ペア:

[(1, 2128280), (2, 1064140), (4, 532070), (5, 425656), (7, 304040), (8, 266035), (10, 212828), (11, 193480), (14, 152020), (20, 106414), (22, 96740), (28, 76010), (35, 60808), (40, 53207), (44, 48370), (55, 38696), (56, 38005), (70, 30404), (77, 27640), (88, 24185), (110, 19348), (140, 15202), (154, 13820), (220, 9674), (280, 7601), (308, 6910), (385, 5528), (440, 4837), (616, 3455), (691, 3080), (770, 2764), (1382, 1540)]