19602220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89101}}^1$

素因数の和:89121

約数の個数: 24

約数和(自身を含む): 44907408

約数和(自身を除く): 25305188

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 89101, 178202, 356404, 445505, 891010, 980111, 1782020, 1960222, 3920444, 4900555, 9801110, 19602220]

約数ペア:

[(1, 19602220), (2, 9801110), (4, 4900555), (5, 3920444), (10, 1960222), (11, 1782020), (20, 980111), (22, 891010), (44, 445505), (55, 356404), (110, 178202), (220, 89101)]