28888420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131311}}^1$

素因数の和:131331

約数の個数: 24

約数和(自身を含む): 66181248

約数和(自身を除く): 37292828

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 131311, 262622, 525244, 656555, 1313110, 1444421, 2626220, 2888842, 5777684, 7222105, 14444210, 28888420]

約数ペア:

[(1, 28888420), (2, 14444210), (4, 7222105), (5, 5777684), (10, 2888842), (11, 2626220), (20, 1444421), (22, 1313110), (44, 656555), (55, 525244), (110, 262622), (220, 131311)]