397727540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2840911}}^1$

素因数の和:2840927

約数の個数: 24

約数和(自身を含む): 954546432

約数和(自身を除く): 556818892

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2840911, 5681822, 11363644, 14204555, 19886377, 28409110, 39772754, 56818220, 79545508, 99431885, 198863770, 397727540]

約数ペア:

[(1, 397727540), (2, 198863770), (4, 99431885), (5, 79545508), (7, 56818220), (10, 39772754), (14, 28409110), (20, 19886377), (28, 14204555), (35, 11363644), (70, 5681822), (140, 2840911)]