4256560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{691}}^1$

素因数の和:722

約数の個数: 80

約数和(自身を含む): 12356352

約数和(自身を除く): 8099792

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, 691, 770, 880, 1232, 1382, 1540, 2764, 3080, 3455, 4837, 5528, 6160, 6910, 7601, 9674, 11056, 13820, 15202, 19348, 24185, 27640, 30404, 38005, 38696, 48370, 53207, 55280, 60808, 76010, 77392, 96740, 106414, 121616, 152020, 193480, 212828, 266035, 304040, 386960, 425656, 532070, 608080, 851312, 1064140, 2128280, 4256560]

約数ペア:

[(1, 4256560), (2, 2128280), (4, 1064140), (5, 851312), (7, 608080), (8, 532070), (10, 425656), (11, 386960), (14, 304040), (16, 266035), (20, 212828), (22, 193480), (28, 152020), (35, 121616), (40, 106414), (44, 96740), (55, 77392), (56, 76010), (70, 60808), (77, 55280), (80, 53207), (88, 48370), (110, 38696), (112, 38005), (140, 30404), (154, 27640), (176, 24185), (220, 19348), (280, 15202), (308, 13820), (385, 11056), (440, 9674), (560, 7601), (616, 6910), (691, 6160), (770, 5528), (880, 4837), (1232, 3455), (1382, 3080), (1540, 2764)]