18855820

素因数分解:

$2^2\times 5^1\times {\mathrm{457}}^1\times {\mathrm{2063}}^1$

素因数の和:2529

約数の個数: 24

約数和(自身を含む): 39703104

約数和(自身を除く): 20847284

約数列:

[1, 2, 4, 5, 10, 20, 457, 914, 1828, 2063, 2285, 4126, 4570, 8252, 9140, 10315, 20630, 41260, 942791, 1885582, 3771164, 4713955, 9427910, 18855820]

約数ペア:

[(1, 18855820), (2, 9427910), (4, 4713955), (5, 3771164), (10, 1885582), (20, 942791), (457, 41260), (914, 20630), (1828, 10315), (2063, 9140), (2285, 8252), (4126, 4570)]