678333820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{337}}^1\times {\mathrm{5297}}^1$

素因数の和:5662

約数の個数: 48

約数和(自身を含む): 1504208160

約数和(自身を除く): 825874340

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 337, 380, 674, 1348, 1685, 3370, 5297, 6403, 6740, 10594, 12806, 21188, 25612, 26485, 32015, 52970, 64030, 100643, 105940, 128060, 201286, 402572, 503215, 1006430, 1785089, 2012860, 3570178, 7140356, 8925445, 17850890, 33916691, 35701780, 67833382, 135666764, 169583455, 339166910, 678333820]

約数ペア:

[(1, 678333820), (2, 339166910), (4, 169583455), (5, 135666764), (10, 67833382), (19, 35701780), (20, 33916691), (38, 17850890), (76, 8925445), (95, 7140356), (190, 3570178), (337, 2012860), (380, 1785089), (674, 1006430), (1348, 503215), (1685, 402572), (3370, 201286), (5297, 128060), (6403, 105940), (6740, 100643), (10594, 64030), (12806, 52970), (21188, 32015), (25612, 26485)]