12261820

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{1499}}^1$

素因数の和:1917

約数の個数: 24

約数和(自身を含む): 25830000

約数和(自身を除く): 13568180

約数列:

[1, 2, 4, 5, 10, 20, 409, 818, 1499, 1636, 2045, 2998, 4090, 5996, 7495, 8180, 14990, 29980, 613091, 1226182, 2452364, 3065455, 6130910, 12261820]

約数ペア:

[(1, 12261820), (2, 6130910), (4, 3065455), (5, 2452364), (10, 1226182), (20, 613091), (409, 29980), (818, 14990), (1499, 8180), (1636, 7495), (2045, 5996), (2998, 4090)]