30128600

素因数分解:

$2^3\times 5^2\times {\mathrm{199}}^1\times {\mathrm{757}}^1$

素因数の和:972

約数の個数: 48

約数和(自身を含む): 70494000

約数和(自身を除く): 40365400

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 199, 200, 398, 757, 796, 995, 1514, 1592, 1990, 3028, 3785, 3980, 4975, 6056, 7570, 7960, 9950, 15140, 18925, 19900, 30280, 37850, 39800, 75700, 150643, 151400, 301286, 602572, 753215, 1205144, 1506430, 3012860, 3766075, 6025720, 7532150, 15064300, 30128600]

約数ペア:

[(1, 30128600), (2, 15064300), (4, 7532150), (5, 6025720), (8, 3766075), (10, 3012860), (20, 1506430), (25, 1205144), (40, 753215), (50, 602572), (100, 301286), (199, 151400), (200, 150643), (398, 75700), (757, 39800), (796, 37850), (995, 30280), (1514, 19900), (1592, 18925), (1990, 15140), (3028, 9950), (3785, 7960), (3980, 7570), (4975, 6056)]