28392745

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{311}}^1$

素因数の和:397

約数の個数: 24

約数和(自身を含む): 37177920

約数和(自身を除く): 8785175

約数列:

[1, 5, 19, 31, 95, 155, 311, 589, 961, 1555, 2945, 4805, 5909, 9641, 18259, 29545, 48205, 91295, 183179, 298871, 915895, 1494355, 5678549, 28392745]

約数ペア:

[(1, 28392745), (5, 5678549), (19, 1494355), (31, 915895), (95, 298871), (155, 183179), (311, 91295), (589, 48205), (961, 29545), (1555, 18259), (2945, 9641), (4805, 5909)]