15752840

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1979}}^1$

素因数の和:2189

約数の個数: 32

約数和(自身を含む): 35640000

約数和(自身を除く): 19887160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1979, 1990, 3958, 3980, 7916, 7960, 9895, 15832, 19790, 39580, 79160, 393821, 787642, 1575284, 1969105, 3150568, 3938210, 7876420, 15752840]

約数ペア:

[(1, 15752840), (2, 7876420), (4, 3938210), (5, 3150568), (8, 1969105), (10, 1575284), (20, 787642), (40, 393821), (199, 79160), (398, 39580), (796, 19790), (995, 15832), (1592, 9895), (1979, 7960), (1990, 7916), (3958, 3980)]