99638320

素因数分解:

$2^4\times 5^1\times {\mathrm{1245479}}^1$

素因数の和:1245492

約数の個数: 20

約数和(自身を含む): 231659280

約数和(自身を除く): 132020960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1245479, 2490958, 4981916, 6227395, 9963832, 12454790, 19927664, 24909580, 49819160, 99638320]

約数ペア:

[(1, 99638320), (2, 49819160), (4, 24909580), (5, 19927664), (8, 12454790), (10, 9963832), (16, 6227395), (20, 4981916), (40, 2490958), (80, 1245479)]