12729020

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{5839}}^1$

素因数の和:5957

約数の個数: 24

約数和(自身を含む): 26980800

約数和(自身を除く): 14251780

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 5839, 11678, 23356, 29195, 58390, 116780, 636451, 1272902, 2545804, 3182255, 6364510, 12729020]

約数ペア:

[(1, 12729020), (2, 6364510), (4, 3182255), (5, 2545804), (10, 1272902), (20, 636451), (109, 116780), (218, 58390), (436, 29195), (545, 23356), (1090, 11678), (2180, 5839)]