1999890305

素因数分解:

$5^1\times 7^1\times {\mathrm{3187}}^1\times {\mathrm{17929}}^1$

素因数の和:21128

約数の個数: 16

約数和(自身を含む): 2743720320

約数和(自身を除く): 743830015

約数列:

[1, 5, 7, 35, 3187, 15935, 17929, 22309, 89645, 111545, 125503, 627515, 57139723, 285698615, 399978061, 1999890305]

約数ペア:

[(1, 1999890305), (5, 399978061), (7, 285698615), (35, 57139723), (3187, 627515), (15935, 125503), (17929, 111545), (22309, 89645)]