28018155

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{359}}^1$

素因数の和:432

約数の個数: 48

約数和(自身を含む): 50561280

約数和(自身を除く): 22543125

約数列:

[1, 3, 5, 11, 15, 33, 43, 55, 121, 129, 165, 215, 359, 363, 473, 605, 645, 1077, 1419, 1795, 1815, 2365, 3949, 5203, 5385, 7095, 11847, 15437, 15609, 19745, 26015, 43439, 46311, 59235, 77185, 78045, 130317, 169807, 217195, 231555, 509421, 651585, 849035, 1867877, 2547105, 5603631, 9339385, 28018155]

約数ペア:

[(1, 28018155), (3, 9339385), (5, 5603631), (11, 2547105), (15, 1867877), (33, 849035), (43, 651585), (55, 509421), (121, 231555), (129, 217195), (165, 169807), (215, 130317), (359, 78045), (363, 77185), (473, 59235), (605, 46311), (645, 43439), (1077, 26015), (1419, 19745), (1795, 15609), (1815, 15437), (2365, 11847), (3949, 7095), (5203, 5385)]