664752785

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{340027}}^1$

素因数の和:340072

約数の個数: 16

約数和(自身を含む): 881352576

約数和(自身を除く): 216599791

約数列:

[1, 5, 17, 23, 85, 115, 391, 1955, 340027, 1700135, 5780459, 7820621, 28902295, 39103105, 132950557, 664752785]

約数ペア:

[(1, 664752785), (5, 132950557), (17, 39103105), (23, 28902295), (85, 7820621), (115, 5780459), (391, 1700135), (1955, 340027)]