2640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1$

素因数の和:27

約数の個数: 40

約数和(自身を含む): 8928

約数和(自身を除く): 6288

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 80, 88, 110, 120, 132, 165, 176, 220, 240, 264, 330, 440, 528, 660, 880, 1320, 2640]

約数ペア:

[(1, 2640), (2, 1320), (3, 880), (4, 660), (5, 528), (6, 440), (8, 330), (10, 264), (11, 240), (12, 220), (15, 176), (16, 165), (20, 132), (22, 120), (24, 110), (30, 88), (33, 80), (40, 66), (44, 60), (48, 55)]