28267280

素因数分解:

$2^4\times 5^1\times {\mathrm{353341}}^1$

素因数の和:353354

約数の個数: 20

約数和(自身を含む): 65721612

約数和(自身を除く): 37454332

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 353341, 706682, 1413364, 1766705, 2826728, 3533410, 5653456, 7066820, 14133640, 28267280]

約数ペア:

[(1, 28267280), (2, 14133640), (4, 7066820), (5, 5653456), (8, 3533410), (10, 2826728), (16, 1766705), (20, 1413364), (40, 706682), (80, 353341)]