28685680

素因数分解:

$2^4\times 5^1\times {\mathrm{358571}}^1$

素因数の和:358584

約数の個数: 20

約数和(自身を含む): 66694392

約数和(自身を除く): 38008712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 358571, 717142, 1434284, 1792855, 2868568, 3585710, 5737136, 7171420, 14342840, 28685680]

約数ペア:

[(1, 28685680), (2, 14342840), (4, 7171420), (5, 5737136), (8, 3585710), (10, 2868568), (16, 1792855), (20, 1434284), (40, 717142), (80, 358571)]