12945820

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{8867}}^1$

素因数の和:8949

約数の個数: 24

約数和(自身を含む): 27561744

約数和(自身を除く): 14615924

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 8867, 17734, 35468, 44335, 88670, 177340, 647291, 1294582, 2589164, 3236455, 6472910, 12945820]

約数ペア:

[(1, 12945820), (2, 6472910), (4, 3236455), (5, 2589164), (10, 1294582), (20, 647291), (73, 177340), (146, 88670), (292, 44335), (365, 35468), (730, 17734), (1460, 8867)]