78413960

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{9851}}^1$

素因数の和:10061

約数の個数: 32

約数和(自身を含む): 177336000

約数和(自身を除く): 98922040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1990, 3980, 7960, 9851, 19702, 39404, 49255, 78808, 98510, 197020, 394040, 1960349, 3920698, 7841396, 9801745, 15682792, 19603490, 39206980, 78413960]

約数ペア:

[(1, 78413960), (2, 39206980), (4, 19603490), (5, 15682792), (8, 9801745), (10, 7841396), (20, 3920698), (40, 1960349), (199, 394040), (398, 197020), (796, 98510), (995, 78808), (1592, 49255), (1990, 39404), (3980, 19702), (7960, 9851)]