129431140

素因数分解:

$2^2\times 5^1\times {\mathrm{547}}^1\times {\mathrm{11831}}^1$

素因数の和:12387

約数の個数: 24

約数和(自身を含む): 272325312

約数和(自身を除く): 142894172

約数列:

[1, 2, 4, 5, 10, 20, 547, 1094, 2188, 2735, 5470, 10940, 11831, 23662, 47324, 59155, 118310, 236620, 6471557, 12943114, 25886228, 32357785, 64715570, 129431140]

約数ペア:

[(1, 129431140), (2, 64715570), (4, 32357785), (5, 25886228), (10, 12943114), (20, 6471557), (547, 236620), (1094, 118310), (2188, 59155), (2735, 47324), (5470, 23662), (10940, 11831)]