8643280

素因数分解:

$2^4\times 5^1\times {\mathrm{108041}}^1$

素因数の和:108054

約数の個数: 20

約数和(自身を含む): 20095812

約数和(自身を除く): 11452532

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 108041, 216082, 432164, 540205, 864328, 1080410, 1728656, 2160820, 4321640, 8643280]

約数ペア:

[(1, 8643280), (2, 4321640), (4, 2160820), (5, 1728656), (8, 1080410), (10, 864328), (16, 540205), (20, 432164), (40, 216082), (80, 108041)]