128538520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{292133}}^1$

素因数の和:292155

約数の個数: 32

約数和(自身を含む): 315504720

約数和(自身を除く): 186966200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 292133, 584266, 1168532, 1460665, 2337064, 2921330, 3213463, 5842660, 6426926, 11685320, 12853852, 16067315, 25707704, 32134630, 64269260, 128538520]

約数ペア:

[(1, 128538520), (2, 64269260), (4, 32134630), (5, 25707704), (8, 16067315), (10, 12853852), (11, 11685320), (20, 6426926), (22, 5842660), (40, 3213463), (44, 2921330), (55, 2337064), (88, 1460665), (110, 1168532), (220, 584266), (440, 292133)]