18286220

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53783}}^1$

素因数の和:53809

約数の個数: 24

約数和(自身を含む): 40660704

約数和(自身を除く): 22374484

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 53783, 107566, 215132, 268915, 537830, 914311, 1075660, 1828622, 3657244, 4571555, 9143110, 18286220]

約数ペア:

[(1, 18286220), (2, 9143110), (4, 4571555), (5, 3657244), (10, 1828622), (17, 1075660), (20, 914311), (34, 537830), (68, 268915), (85, 215132), (170, 107566), (340, 53783)]