200420120

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{191}}^1\times {\mathrm{709}}^1$

素因数の和:948

約数の個数: 64

約数和(自身を含む): 466214400

約数和(自身を除く): 265794280

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 191, 296, 370, 382, 709, 740, 764, 955, 1418, 1480, 1528, 1910, 2836, 3545, 3820, 5672, 7067, 7090, 7640, 14134, 14180, 26233, 28268, 28360, 35335, 52466, 56536, 70670, 104932, 131165, 135419, 141340, 209864, 262330, 270838, 282680, 524660, 541676, 677095, 1049320, 1083352, 1354190, 2708380, 5010503, 5416760, 10021006, 20042012, 25052515, 40084024, 50105030, 100210060, 200420120]

約数ペア:

[(1, 200420120), (2, 100210060), (4, 50105030), (5, 40084024), (8, 25052515), (10, 20042012), (20, 10021006), (37, 5416760), (40, 5010503), (74, 2708380), (148, 1354190), (185, 1083352), (191, 1049320), (296, 677095), (370, 541676), (382, 524660), (709, 282680), (740, 270838), (764, 262330), (955, 209864), (1418, 141340), (1480, 135419), (1528, 131165), (1910, 104932), (2836, 70670), (3545, 56536), (3820, 52466), (5672, 35335), (7067, 28360), (7090, 28268), (7640, 26233), (14134, 14180)]