28675275

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{20123}}^1$

素因数の和:20155

約数の個数: 24

約数和(自身を含む): 49907520

約数和(自身を除く): 21232245

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 95, 285, 475, 1425, 20123, 60369, 100615, 301845, 382337, 503075, 1147011, 1509225, 1911685, 5735055, 9558425, 28675275]

約数ペア:

[(1, 28675275), (3, 9558425), (5, 5735055), (15, 1911685), (19, 1509225), (25, 1147011), (57, 503075), (75, 382337), (95, 301845), (285, 100615), (475, 60369), (1425, 20123)]