20446420

素因数分解:

$2^2\times 5^1\times {\mathrm{193}}^1\times {\mathrm{5297}}^1$

素因数の和:5499

約数の個数: 24

約数和(自身を含む): 43168104

約数和(自身を除く): 22721684

約数列:

[1, 2, 4, 5, 10, 20, 193, 386, 772, 965, 1930, 3860, 5297, 10594, 21188, 26485, 52970, 105940, 1022321, 2044642, 4089284, 5111605, 10223210, 20446420]

約数ペア:

[(1, 20446420), (2, 10223210), (4, 5111605), (5, 4089284), (10, 2044642), (20, 1022321), (193, 105940), (386, 52970), (772, 26485), (965, 21188), (1930, 10594), (3860, 5297)]