20415155

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{797}}^1$

素因数の和:958

約数の個数: 16

約数和(自身を含む): 25280640

約数和(自身を除く): 4865485

約数列:

[1, 5, 47, 109, 235, 545, 797, 3985, 5123, 25615, 37459, 86873, 187295, 434365, 4083031, 20415155]

約数ペア:

[(1, 20415155), (5, 4083031), (47, 434365), (109, 187295), (235, 86873), (545, 37459), (797, 25615), (3985, 5123)]