2021306725

素因数分解:

$5^2\times {\mathrm{139}}^1\times {\mathrm{719}}^1\times {\mathrm{809}}^1$

素因数の和:1677

約数の個数: 24

約数和(自身を含む): 2531088000

約数和(自身を除く): 509781275

約数列:

[1, 5, 25, 139, 695, 719, 809, 3475, 3595, 4045, 17975, 20225, 99941, 112451, 499705, 562255, 581671, 2498525, 2811275, 2908355, 14541775, 80852269, 404261345, 2021306725]

約数ペア:

[(1, 2021306725), (5, 404261345), (25, 80852269), (139, 14541775), (695, 2908355), (719, 2811275), (809, 2498525), (3475, 581671), (3595, 562255), (4045, 499705), (17975, 112451), (20225, 99941)]