18912460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{135089}}^1$

素因数の和:135105

約数の個数: 24

約数和(自身を含む): 45390240

約数和(自身を除く): 26477780

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 135089, 270178, 540356, 675445, 945623, 1350890, 1891246, 2701780, 3782492, 4728115, 9456230, 18912460]

約数ペア:

[(1, 18912460), (2, 9456230), (4, 4728115), (5, 3782492), (7, 2701780), (10, 1891246), (14, 1350890), (20, 945623), (28, 675445), (35, 540356), (70, 270178), (140, 135089)]