217118950

素因数分解:

$2^1\times 5^2\times {\mathrm{199}}^1\times {\mathrm{21821}}^1$

素因数の和:22032

約数の個数: 24

約数和(自身を含む): 405889200

約数和(自身を除く): 188770250

約数列:

[1, 2, 5, 10, 25, 50, 199, 398, 995, 1990, 4975, 9950, 21821, 43642, 109105, 218210, 545525, 1091050, 4342379, 8684758, 21711895, 43423790, 108559475, 217118950]

約数ペア:

[(1, 217118950), (2, 108559475), (5, 43423790), (10, 21711895), (25, 8684758), (50, 4342379), (199, 1091050), (398, 545525), (995, 218210), (1990, 109105), (4975, 43642), (9950, 21821)]