28295845

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{1999}}^1$

素因数の和:2172

約数の個数: 16

約数和(自身を含む): 36000000

約数和(自身を除く): 7704155

約数列:

[1, 5, 19, 95, 149, 745, 1999, 2831, 9995, 14155, 37981, 189905, 297851, 1489255, 5659169, 28295845]

約数ペア:

[(1, 28295845), (5, 5659169), (19, 1489255), (95, 297851), (149, 189905), (745, 37981), (1999, 14155), (2831, 9995)]