7876420

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1979}}^1$

素因数の和:2187

約数の個数: 24

約数和(自身を含む): 16632000

約数和(自身を除く): 8755580

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1979, 1990, 3958, 3980, 7916, 9895, 19790, 39580, 393821, 787642, 1575284, 1969105, 3938210, 7876420]

約数ペア:

[(1, 7876420), (2, 3938210), (4, 1969105), (5, 1575284), (10, 787642), (20, 393821), (199, 39580), (398, 19790), (796, 9895), (995, 7916), (1979, 3980), (1990, 3958)]