5261560

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{661}}^1$

素因数の和:871

約数の個数: 32

約数和(自身を含む): 11916000

約数和(自身を除く): 6654440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 661, 796, 995, 1322, 1592, 1990, 2644, 3305, 3980, 5288, 6610, 7960, 13220, 26440, 131539, 263078, 526156, 657695, 1052312, 1315390, 2630780, 5261560]

約数ペア:

[(1, 5261560), (2, 2630780), (4, 1315390), (5, 1052312), (8, 657695), (10, 526156), (20, 263078), (40, 131539), (199, 26440), (398, 13220), (661, 7960), (796, 6610), (995, 5288), (1322, 3980), (1592, 3305), (1990, 2644)]