204922960

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{337}}^1\times {\mathrm{691}}^1$

素因数の和:1052

約数の個数: 80

約数和(自身を含む): 522055872

約数和(自身を除く): 317132912

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 337, 440, 674, 691, 880, 1348, 1382, 1685, 2696, 2764, 3370, 3455, 3707, 5392, 5528, 6740, 6910, 7414, 7601, 11056, 13480, 13820, 14828, 15202, 18535, 26960, 27640, 29656, 30404, 37070, 38005, 55280, 59312, 60808, 74140, 76010, 121616, 148280, 152020, 232867, 296560, 304040, 465734, 608080, 931468, 1164335, 1862936, 2328670, 2561537, 3725872, 4657340, 5123074, 9314680, 10246148, 12807685, 18629360, 20492296, 25615370, 40984592, 51230740, 102461480, 204922960]

約数ペア:

[(1, 204922960), (2, 102461480), (4, 51230740), (5, 40984592), (8, 25615370), (10, 20492296), (11, 18629360), (16, 12807685), (20, 10246148), (22, 9314680), (40, 5123074), (44, 4657340), (55, 3725872), (80, 2561537), (88, 2328670), (110, 1862936), (176, 1164335), (220, 931468), (337, 608080), (440, 465734), (674, 304040), (691, 296560), (880, 232867), (1348, 152020), (1382, 148280), (1685, 121616), (2696, 76010), (2764, 74140), (3370, 60808), (3455, 59312), (3707, 55280), (5392, 38005), (5528, 37070), (6740, 30404), (6910, 29656), (7414, 27640), (7601, 26960), (11056, 18535), (13480, 15202), (13820, 14828)]