54891890

素因数分解:

$2^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{13421}}^1$

素因数の和:13837

約数の個数: 16

約数和(自身を含む): 99054360

約数和(自身を除く): 44162470

約数列:

[1, 2, 5, 10, 409, 818, 2045, 4090, 13421, 26842, 67105, 134210, 5489189, 10978378, 27445945, 54891890]

約数ペア:

[(1, 54891890), (2, 27445945), (5, 10978378), (10, 5489189), (409, 134210), (818, 67105), (2045, 26842), (4090, 13421)]