2038220

素因数分解:

$2^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{457}}^1$

素因数の和:689

約数の個数: 24

約数和(自身を含む): 4308864

約数和(自身を除く): 2270644

約数列:

[1, 2, 4, 5, 10, 20, 223, 446, 457, 892, 914, 1115, 1828, 2230, 2285, 4460, 4570, 9140, 101911, 203822, 407644, 509555, 1019110, 2038220]

約数ペア:

[(1, 2038220), (2, 1019110), (4, 509555), (5, 407644), (10, 203822), (20, 101911), (223, 9140), (446, 4570), (457, 4460), (892, 2285), (914, 2230), (1115, 1828)]