28212115

素因数分解:

$5^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1\times {\mathrm{433}}^1$

素因数の和:678

約数の個数: 16

約数和(自身を含む): 34560288

約数和(自身を除く): 6348173

約数列:

[1, 5, 83, 157, 415, 433, 785, 2165, 13031, 35939, 65155, 67981, 179695, 339905, 5642423, 28212115]

約数ペア:

[(1, 28212115), (5, 5642423), (83, 339905), (157, 179695), (415, 67981), (433, 65155), (785, 35939), (2165, 13031)]