2123191780

素因数分解:

$2^2\times 5^1\times {\mathrm{9787}}^1\times {\mathrm{10847}}^1$

素因数の和:20643

約数の個数: 24

約数和(自身を含む): 4459569408

約数和(自身を除く): 2336377628

約数列:

[1, 2, 4, 5, 10, 20, 9787, 10847, 19574, 21694, 39148, 43388, 48935, 54235, 97870, 108470, 195740, 216940, 106159589, 212319178, 424638356, 530797945, 1061595890, 2123191780]

約数ペア:

[(1, 2123191780), (2, 1061595890), (4, 530797945), (5, 424638356), (10, 212319178), (20, 106159589), (9787, 216940), (10847, 195740), (19574, 108470), (21694, 97870), (39148, 54235), (43388, 48935)]