51302200

素因数分解:

$2^3\times 5^2\times {\mathrm{199}}^1\times {\mathrm{1289}}^1$

素因数の和:1504

約数の個数: 48

約数和(自身を含む): 119970000

約数和(自身を除く): 68667800

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 199, 200, 398, 796, 995, 1289, 1592, 1990, 2578, 3980, 4975, 5156, 6445, 7960, 9950, 10312, 12890, 19900, 25780, 32225, 39800, 51560, 64450, 128900, 256511, 257800, 513022, 1026044, 1282555, 2052088, 2565110, 5130220, 6412775, 10260440, 12825550, 25651100, 51302200]

約数ペア:

[(1, 51302200), (2, 25651100), (4, 12825550), (5, 10260440), (8, 6412775), (10, 5130220), (20, 2565110), (25, 2052088), (40, 1282555), (50, 1026044), (100, 513022), (199, 257800), (200, 256511), (398, 128900), (796, 64450), (995, 51560), (1289, 39800), (1592, 32225), (1990, 25780), (2578, 19900), (3980, 12890), (4975, 10312), (5156, 9950), (6445, 7960)]