20195180

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{9437}}^1$

素因数の和:9553

約数の個数: 24

約数和(自身を含む): 42810768

約数和(自身を除く): 22615588

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 1070, 2140, 9437, 18874, 37748, 47185, 94370, 188740, 1009759, 2019518, 4039036, 5048795, 10097590, 20195180]

約数ペア:

[(1, 20195180), (2, 10097590), (4, 5048795), (5, 4039036), (10, 2019518), (20, 1009759), (107, 188740), (214, 94370), (428, 47185), (535, 37748), (1070, 18874), (2140, 9437)]