12885560

素因数分解:

$2^3\times 5^1\times {\mathrm{322139}}^1$

素因数の和:322150

約数の個数: 16

約数和(自身を含む): 28992600

約数和(自身を除く): 16107040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 322139, 644278, 1288556, 1610695, 2577112, 3221390, 6442780, 12885560]

約数ペア:

[(1, 12885560), (2, 6442780), (4, 3221390), (5, 2577112), (8, 1610695), (10, 1288556), (20, 644278), (40, 322139)]