1280454885

素因数分解:

$3^4\times 5^1\times {\mathrm{3161617}}^1$

素因数の和:3161634

約数の個数: 20

約数和(自身を含む): 2295334668

約数和(自身を除く): 1014879783

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 3161617, 9484851, 15808085, 28454553, 47424255, 85363659, 142272765, 256090977, 426818295, 1280454885]

約数ペア:

[(1, 1280454885), (3, 426818295), (5, 256090977), (9, 142272765), (15, 85363659), (27, 47424255), (45, 28454553), (81, 15808085), (135, 9484851), (405, 3161617)]