12421340

素因数分解:

$2^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{1997}}^1$

素因数の和:2317

約数の個数: 24

約数和(自身を含む): 26181792

約数和(自身を除く): 13760452

約数列:

[1, 2, 4, 5, 10, 20, 311, 622, 1244, 1555, 1997, 3110, 3994, 6220, 7988, 9985, 19970, 39940, 621067, 1242134, 2484268, 3105335, 6210670, 12421340]

約数ペア:

[(1, 12421340), (2, 6210670), (4, 3105335), (5, 2484268), (10, 1242134), (20, 621067), (311, 39940), (622, 19970), (1244, 9985), (1555, 7988), (1997, 6220), (3110, 3994)]