28404805

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{39727}}^1$

素因数の和:39756

約数の個数: 16

約数和(自身を含む): 40045824

約数和(自身を除く): 11641019

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 39727, 198635, 436997, 516451, 2184985, 2582255, 5680961, 28404805]

約数ペア:

[(1, 28404805), (5, 5680961), (11, 2582255), (13, 2184985), (55, 516451), (65, 436997), (143, 198635), (715, 39727)]