82170320

素因数分解:

$2^4\times 5^1\times {\mathrm{1027129}}^1$

素因数の和:1027142

約数の個数: 20

約数和(自身を含む): 191046180

約数和(自身を除く): 108875860

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1027129, 2054258, 4108516, 5135645, 8217032, 10271290, 16434064, 20542580, 41085160, 82170320]

約数ペア:

[(1, 82170320), (2, 41085160), (4, 20542580), (5, 16434064), (8, 10271290), (10, 8217032), (16, 5135645), (20, 4108516), (40, 2054258), (80, 1027129)]