217089100

素因数分解:

$2^2\times 5^2\times {\mathrm{199}}^1\times {\mathrm{10909}}^1$

素因数の和:11122

約数の個数: 36

約数和(自身を含む): 473494000

約数和(自身を除く): 256404900

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 199, 398, 796, 995, 1990, 3980, 4975, 9950, 10909, 19900, 21818, 43636, 54545, 109090, 218180, 272725, 545450, 1090900, 2170891, 4341782, 8683564, 10854455, 21708910, 43417820, 54272275, 108544550, 217089100]

約数ペア:

[(1, 217089100), (2, 108544550), (4, 54272275), (5, 43417820), (10, 21708910), (20, 10854455), (25, 8683564), (50, 4341782), (100, 2170891), (199, 1090900), (398, 545450), (796, 272725), (995, 218180), (1990, 109090), (3980, 54545), (4975, 43636), (9950, 21818), (10909, 19900)]