55109680

素因数分解:

$2^4\times 5^1\times {\mathrm{688871}}^1$

素因数の和:688884

約数の個数: 20

約数和(自身を含む): 128130192

約数和(自身を除く): 73020512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 688871, 1377742, 2755484, 3444355, 5510968, 6888710, 11021936, 13777420, 27554840, 55109680]

約数ペア:

[(1, 55109680), (2, 27554840), (4, 13777420), (5, 11021936), (8, 6888710), (10, 5510968), (16, 3444355), (20, 2755484), (40, 1377742), (80, 688871)]