248265

素因数分解:

$3^4\times 5^1\times {\mathrm{613}}^1$

素因数の和:630

約数の個数: 20

約数和(自身を含む): 445764

約数和(自身を除く): 197499

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 613, 1839, 3065, 5517, 9195, 16551, 27585, 49653, 82755, 248265]

約数ペア:

[(1, 248265), (3, 82755), (5, 49653), (9, 27585), (15, 16551), (27, 9195), (45, 5517), (81, 3065), (135, 1839), (405, 613)]