20104040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{45691}}^1$

素因数の和:45713

約数の個数: 32

約数和(自身を含む): 49347360

約数和(自身を除く): 29243320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 45691, 91382, 182764, 228455, 365528, 456910, 502601, 913820, 1005202, 1827640, 2010404, 2513005, 4020808, 5026010, 10052020, 20104040]

約数ペア:

[(1, 20104040), (2, 10052020), (4, 5026010), (5, 4020808), (8, 2513005), (10, 2010404), (11, 1827640), (20, 1005202), (22, 913820), (40, 502601), (44, 456910), (55, 365528), (88, 228455), (110, 182764), (220, 91382), (440, 45691)]