408645

素因数分解:

$3^4\times 5^1\times {\mathrm{1009}}^1$

素因数の和:1026

約数の個数: 20

約数和(自身を含む): 733260

約数和(自身を除く): 324615

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 1009, 3027, 5045, 9081, 15135, 27243, 45405, 81729, 136215, 408645]

約数ペア:

[(1, 408645), (3, 136215), (5, 81729), (9, 45405), (15, 27243), (27, 15135), (45, 9081), (81, 5045), (135, 3027), (405, 1009)]