8644280

素因数分解:

$2^3\times 5^1\times {\mathrm{216107}}^1$

素因数の和:216118

約数の個数: 16

約数和(自身を含む): 19449720

約数和(自身を除く): 10805440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 216107, 432214, 864428, 1080535, 1728856, 2161070, 4322140, 8644280]

約数ペア:

[(1, 8644280), (2, 4322140), (4, 2161070), (5, 1728856), (8, 1080535), (10, 864428), (20, 432214), (40, 216107)]