2580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1$

素因数の和:55

約数の個数: 24

約数和(自身を含む): 7392

約数和(自身を除く): 4812

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 86, 129, 172, 215, 258, 430, 516, 645, 860, 1290, 2580]

約数ペア:

[(1, 2580), (2, 1290), (3, 860), (4, 645), (5, 516), (6, 430), (10, 258), (12, 215), (15, 172), (20, 129), (30, 86), (43, 60)]