540

素因数分解:

$2^2\times 3^3\times 5^1$

素因数の和:18

約数の個数: 24

約数和(自身を含む): 1680

約数和(自身を除く): 1140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540]

約数ペア:

[(1, 540), (2, 270), (3, 180), (4, 135), (5, 108), (6, 90), (9, 60), (10, 54), (12, 45), (15, 36), (18, 30), (20, 27)]