8123740

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{9907}}^1$

素因数の和:9957

約数の個数: 24

約数和(自身を含む): 17477712

約数和(自身を除く): 9353972

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 9907, 19814, 39628, 49535, 99070, 198140, 406187, 812374, 1624748, 2030935, 4061870, 8123740]

約数ペア:

[(1, 8123740), (2, 4061870), (4, 2030935), (5, 1624748), (10, 812374), (20, 406187), (41, 198140), (82, 99070), (164, 49535), (205, 39628), (410, 19814), (820, 9907)]