18285560

素因数分解:

$2^3\times 5^1\times {\mathrm{457139}}^1$

素因数の和:457150

約数の個数: 16

約数和(自身を含む): 41142600

約数和(自身を除く): 22857040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 457139, 914278, 1828556, 2285695, 3657112, 4571390, 9142780, 18285560]

約数ペア:

[(1, 18285560), (2, 9142780), (4, 4571390), (5, 3657112), (8, 2285695), (10, 1828556), (20, 914278), (40, 457139)]