20045915

素因数分解:

$5^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1\times {\mathrm{421}}^1$

素因数の和:622

約数の個数: 16

約数和(自身を含む): 24611040

約数和(自身を除く): 4565125

約数列:

[1, 5, 89, 107, 421, 445, 535, 2105, 9523, 37469, 45047, 47615, 187345, 225235, 4009183, 20045915]

約数ペア:

[(1, 20045915), (5, 4009183), (89, 225235), (107, 187345), (421, 47615), (445, 45047), (535, 37469), (2105, 9523)]