81078650

素因数分解:

$2^1\times 5^2\times {\mathrm{43}}^2\times {\mathrm{877}}^1$

素因数の和:975

約数の個数: 36

約数和(自身を含む): 154571022

約数和(自身を除く): 73492372

約数列:

[1, 2, 5, 10, 25, 43, 50, 86, 215, 430, 877, 1075, 1754, 1849, 2150, 3698, 4385, 8770, 9245, 18490, 21925, 37711, 43850, 46225, 75422, 92450, 188555, 377110, 942775, 1621573, 1885550, 3243146, 8107865, 16215730, 40539325, 81078650]

約数ペア:

[(1, 81078650), (2, 40539325), (5, 16215730), (10, 8107865), (25, 3243146), (43, 1885550), (50, 1621573), (86, 942775), (215, 377110), (430, 188555), (877, 92450), (1075, 75422), (1754, 46225), (1849, 43850), (2150, 37711), (3698, 21925), (4385, 18490), (8770, 9245)]