28321480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{337}}^1$

素因数の和:550

約数の個数: 64

約数和(自身を含む): 70087680

約数和(自身を除く): 41766200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 191, 220, 337, 382, 440, 674, 764, 955, 1348, 1528, 1685, 1910, 2101, 2696, 3370, 3707, 3820, 4202, 6740, 7414, 7640, 8404, 10505, 13480, 14828, 16808, 18535, 21010, 29656, 37070, 42020, 64367, 74140, 84040, 128734, 148280, 257468, 321835, 514936, 643670, 708037, 1287340, 1416074, 2574680, 2832148, 3540185, 5664296, 7080370, 14160740, 28321480]

約数ペア:

[(1, 28321480), (2, 14160740), (4, 7080370), (5, 5664296), (8, 3540185), (10, 2832148), (11, 2574680), (20, 1416074), (22, 1287340), (40, 708037), (44, 643670), (55, 514936), (88, 321835), (110, 257468), (191, 148280), (220, 128734), (337, 84040), (382, 74140), (440, 64367), (674, 42020), (764, 37070), (955, 29656), (1348, 21010), (1528, 18535), (1685, 16808), (1910, 14828), (2101, 13480), (2696, 10505), (3370, 8404), (3707, 7640), (3820, 7414), (4202, 6740)]