28097080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{63857}}^1$

素因数の和:63879

約数の個数: 32

約数和(自身を含む): 68966640

約数和(自身を除く): 40869560

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 63857, 127714, 255428, 319285, 510856, 638570, 702427, 1277140, 1404854, 2554280, 2809708, 3512135, 5619416, 7024270, 14048540, 28097080]

約数ペア:

[(1, 28097080), (2, 14048540), (4, 7024270), (5, 5619416), (8, 3512135), (10, 2809708), (11, 2554280), (20, 1404854), (22, 1277140), (40, 702427), (44, 638570), (55, 510856), (88, 319285), (110, 255428), (220, 127714), (440, 63857)]