18128945

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{8297}}^1$

素因数の和:8344

約数の個数: 16

約数和(自身を含む): 23898240

約数和(自身を除く): 5769295

約数列:

[1, 5, 19, 23, 95, 115, 437, 2185, 8297, 41485, 157643, 190831, 788215, 954155, 3625789, 18128945]

約数ペア:

[(1, 18128945), (5, 3625789), (19, 954155), (23, 788215), (95, 190831), (115, 157643), (437, 41485), (2185, 8297)]