87154040

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{10949}}^1$

素因数の和:11159

約数の個数: 32

約数和(自身を含む): 197100000

約数和(自身を除く): 109945960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1990, 3980, 7960, 10949, 21898, 43796, 54745, 87592, 109490, 218980, 437960, 2178851, 4357702, 8715404, 10894255, 17430808, 21788510, 43577020, 87154040]

約数ペア:

[(1, 87154040), (2, 43577020), (4, 21788510), (5, 17430808), (8, 10894255), (10, 8715404), (20, 4357702), (40, 2178851), (199, 437960), (398, 218980), (796, 109490), (995, 87592), (1592, 54745), (1990, 43796), (3980, 21898), (7960, 10949)]