83381680

素因数分解:

$2^4\times 5^1\times {\mathrm{1042271}}^1$

素因数の和:1042284

約数の個数: 20

約数和(自身を含む): 193862592

約数和(自身を除く): 110480912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1042271, 2084542, 4169084, 5211355, 8338168, 10422710, 16676336, 20845420, 41690840, 83381680]

約数ペア:

[(1, 83381680), (2, 41690840), (4, 20845420), (5, 16676336), (8, 10422710), (10, 8338168), (16, 5211355), (20, 4169084), (40, 2084542), (80, 1042271)]