9900250

素因数分解:

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

素因数の和:415

約数の個数: 24

約数和(自身を含む): 18626868

約数和(自身を除く): 8726618

約数列:

[1, 2, 5, 10, 25, 50, 125, 199, 250, 398, 995, 1990, 4975, 9950, 24875, 39601, 49750, 79202, 198005, 396010, 990025, 1980050, 4950125, 9900250]

約数ペア:

[(1, 9900250), (2, 4950125), (5, 1980050), (10, 990025), (25, 396010), (50, 198005), (125, 79202), (199, 49750), (250, 39601), (398, 24875), (995, 9950), (1990, 4975)]