1685381680

素因数分解:

$2^4\times 5^1\times {\mathrm{21067271}}^1$

素因数の和:21067284

約数の個数: 20

約数和(自身を含む): 3918512592

約数和(自身を除く): 2233130912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 21067271, 42134542, 84269084, 105336355, 168538168, 210672710, 337076336, 421345420, 842690840, 1685381680]

約数ペア:

[(1, 1685381680), (2, 842690840), (4, 421345420), (5, 337076336), (8, 210672710), (10, 168538168), (16, 105336355), (20, 84269084), (40, 42134542), (80, 21067271)]