28541360

素因数分解:

$2^4\times 5^1\times {\mathrm{197}}^1\times {\mathrm{1811}}^1$

素因数の和:2021

約数の個数: 40

約数和(自身を含む): 66732336

約数和(自身を除く): 38190976

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 197, 394, 788, 985, 1576, 1811, 1970, 3152, 3622, 3940, 7244, 7880, 9055, 14488, 15760, 18110, 28976, 36220, 72440, 144880, 356767, 713534, 1427068, 1783835, 2854136, 3567670, 5708272, 7135340, 14270680, 28541360]

約数ペア:

[(1, 28541360), (2, 14270680), (4, 7135340), (5, 5708272), (8, 3567670), (10, 2854136), (16, 1783835), (20, 1427068), (40, 713534), (80, 356767), (197, 144880), (394, 72440), (788, 36220), (985, 28976), (1576, 18110), (1811, 15760), (1970, 14488), (3152, 9055), (3622, 7880), (3940, 7244)]