81149405

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{353}}^1\times {\mathrm{1999}}^1$

素因数の和:2380

約数の個数: 16

約数和(自身を含む): 101952000

約数和(自身を除く): 20802595

約数列:

[1, 5, 23, 115, 353, 1765, 1999, 8119, 9995, 40595, 45977, 229885, 705647, 3528235, 16229881, 81149405]

約数ペア:

[(1, 81149405), (5, 16229881), (23, 3528235), (115, 705647), (353, 229885), (1765, 45977), (1999, 40595), (8119, 9995)]