388804905

素因数分解:

$3^2\times 5^1\times {\mathrm{8640109}}^1$

素因数の和:8640120

約数の個数: 12

約数和(自身を含む): 673928580

約数和(自身を除く): 285123675

約数列:

[1, 3, 5, 9, 15, 45, 8640109, 25920327, 43200545, 77760981, 129601635, 388804905]

約数ペア:

[(1, 388804905), (3, 129601635), (5, 77760981), (9, 43200545), (15, 25920327), (45, 8640109)]