208032560

素因数分解:

$2^4\times 5^1\times {\mathrm{2600407}}^1$

素因数の和:2600420

約数の個数: 20

約数和(自身を含む): 483675888

約数和(自身を除く): 275643328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2600407, 5200814, 10401628, 13002035, 20803256, 26004070, 41606512, 52008140, 104016280, 208032560]

約数ペア:

[(1, 208032560), (2, 104016280), (4, 52008140), (5, 41606512), (8, 26004070), (10, 20803256), (16, 13002035), (20, 10401628), (40, 5200814), (80, 2600407)]