1279797790

素因数分解:

$2^1\times 5^1\times {\mathrm{419}}^1\times {\mathrm{305441}}^1$

素因数の和:305867

約数の個数: 16

約数和(自身を含む): 2309141520

約数和(自身を除く): 1029343730

約数列:

[1, 2, 5, 10, 419, 838, 2095, 4190, 305441, 610882, 1527205, 3054410, 127979779, 255959558, 639898895, 1279797790]

約数ペア:

[(1, 1279797790), (2, 639898895), (5, 255959558), (10, 127979779), (419, 3054410), (838, 1527205), (2095, 610882), (4190, 305441)]