90018865

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{20161}}^1$

素因数の和:20232

約数の個数: 16

約数和(自身を含む): 116133120

約数和(自身を除く): 26114255

約数列:

[1, 5, 19, 47, 95, 235, 893, 4465, 20161, 100805, 383059, 947567, 1915295, 4737835, 18003773, 90018865]

約数ペア:

[(1, 90018865), (5, 18003773), (19, 4737835), (47, 1915295), (95, 947567), (235, 383059), (893, 100805), (4465, 20161)]