19388780

素因数分解:

$2^2\times 5^1\times {\mathrm{193}}^1\times {\mathrm{5023}}^1$

素因数の和:5225

約数の個数: 24

約数和(自身を含む): 40935552

約数和(自身を除く): 21546772

約数列:

[1, 2, 4, 5, 10, 20, 193, 386, 772, 965, 1930, 3860, 5023, 10046, 20092, 25115, 50230, 100460, 969439, 1938878, 3877756, 4847195, 9694390, 19388780]

約数ペア:

[(1, 19388780), (2, 9694390), (4, 4847195), (5, 3877756), (10, 1938878), (20, 969439), (193, 100460), (386, 50230), (772, 25115), (965, 20092), (1930, 10046), (3860, 5023)]