218900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{199}}^1$

素因数の和:224

約数の個数: 36

約数和(自身を含む): 520800

約数和(自身を除く): 301900

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 199, 220, 275, 398, 550, 796, 995, 1100, 1990, 2189, 3980, 4378, 4975, 8756, 9950, 10945, 19900, 21890, 43780, 54725, 109450, 218900]

約数ペア:

[(1, 218900), (2, 109450), (4, 54725), (5, 43780), (10, 21890), (11, 19900), (20, 10945), (22, 9950), (25, 8756), (44, 4975), (50, 4378), (55, 3980), (100, 2189), (110, 1990), (199, 1100), (220, 995), (275, 796), (398, 550)]