19800656

素因数分解:

$2^4\times {\mathrm{439}}^1\times {\mathrm{2819}}^1$

素因数の和:3266

約数の個数: 20

約数和(自身を含む): 38464800

約数和(自身を除く): 18664144

約数列:

[1, 2, 4, 8, 16, 439, 878, 1756, 2819, 3512, 5638, 7024, 11276, 22552, 45104, 1237541, 2475082, 4950164, 9900328, 19800656]

約数ペア:

[(1, 19800656), (2, 9900328), (4, 4950164), (8, 2475082), (16, 1237541), (439, 45104), (878, 22552), (1756, 11276), (2819, 7024), (3512, 5638)]