81071605

素因数分解:

$5^1\times {\mathrm{59}}^1\times {\mathrm{199}}^1\times {\mathrm{1381}}^1$

素因数の和:1644

約数の個数: 16

約数和(自身を含む): 99504000

約数和(自身を除く): 18432395

約数列:

[1, 5, 59, 199, 295, 995, 1381, 6905, 11741, 58705, 81479, 274819, 407395, 1374095, 16214321, 81071605]

約数ペア:

[(1, 81071605), (5, 16214321), (59, 1374095), (199, 407395), (295, 274819), (995, 81479), (1381, 58705), (6905, 11741)]