18280180

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{19447}}^1$

素因数の和:19503

約数の個数: 24

約数和(自身を含む): 39207168

約数和(自身を除く): 20926988

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 19447, 38894, 77788, 97235, 194470, 388940, 914009, 1828018, 3656036, 4570045, 9140090, 18280180]

約数ペア:

[(1, 18280180), (2, 9140090), (4, 4570045), (5, 3656036), (10, 1828018), (20, 914009), (47, 388940), (94, 194470), (188, 97235), (235, 77788), (470, 38894), (940, 19447)]