639081595

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{442271}}^1$

素因数の和:442310

約数の個数: 12

約数和(自身を含む): 814665024

約数和(自身を除く): 175583429

約数列:

[1, 5, 17, 85, 289, 1445, 442271, 2211355, 7518607, 37593035, 127816319, 639081595]

約数ペア:

[(1, 639081595), (5, 127816319), (17, 37593035), (85, 7518607), (289, 2211355), (1445, 442271)]