220199480

素因数分解:

$2^3\times 5^1\times {\mathrm{5504987}}^1$

素因数の和:5504998

約数の個数: 16

約数和(自身を含む): 495448920

約数和(自身を除く): 275249440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5504987, 11009974, 22019948, 27524935, 44039896, 55049870, 110099740, 220199480]

約数ペア:

[(1, 220199480), (2, 110099740), (4, 55049870), (5, 44039896), (8, 27524935), (10, 22019948), (20, 11009974), (40, 5504987)]