219906640

素因数分解:

$2^4\times 5^1\times {\mathrm{2748833}}^1$

素因数の和:2748846

約数の個数: 20

約数和(自身を含む): 511283124

約数和(自身を除く): 291376484

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2748833, 5497666, 10995332, 13744165, 21990664, 27488330, 43981328, 54976660, 109953320, 219906640]

約数ペア:

[(1, 219906640), (2, 109953320), (4, 54976660), (5, 43981328), (8, 27488330), (10, 21990664), (16, 13744165), (20, 10995332), (40, 5497666), (80, 2748833)]