2108658220

素因数分解:

$2^2\times 5^1\times {\mathrm{105432911}}^1$

素因数の和:105432920

約数の個数: 12

約数和(自身を含む): 4428182304

約数和(自身を除く): 2319524084

約数列:

[1, 2, 4, 5, 10, 20, 105432911, 210865822, 421731644, 527164555, 1054329110, 2108658220]

約数ペア:

[(1, 2108658220), (2, 1054329110), (4, 527164555), (5, 421731644), (10, 210865822), (20, 105432911)]