2689580

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1511}}^1$

素因数の和:1609

約数の個数: 24

約数和(自身を含む): 5715360

約数和(自身を除く): 3025780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1511, 1780, 3022, 6044, 7555, 15110, 30220, 134479, 268958, 537916, 672395, 1344790, 2689580]

約数ペア:

[(1, 2689580), (2, 1344790), (4, 672395), (5, 537916), (10, 268958), (20, 134479), (89, 30220), (178, 15110), (356, 7555), (445, 6044), (890, 3022), (1511, 1780)]