18072460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{129089}}^1$

素因数の和:129105

約数の個数: 24

約数和(自身を含む): 43374240

約数和(自身を除く): 25301780

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 129089, 258178, 516356, 645445, 903623, 1290890, 1807246, 2581780, 3614492, 4518115, 9036230, 18072460]

約数ペア:

[(1, 18072460), (2, 9036230), (4, 4518115), (5, 3614492), (7, 2581780), (10, 1807246), (14, 1290890), (20, 903623), (28, 645445), (35, 516356), (70, 258178), (140, 129089)]