26263280

素因数分解:

$2^4\times 5^1\times {\mathrm{328291}}^1$

素因数の和:328304

約数の個数: 20

約数和(自身を含む): 61062312

約数和(自身を除く): 34799032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 328291, 656582, 1313164, 1641455, 2626328, 3282910, 5252656, 6565820, 13131640, 26263280]

約数ペア:

[(1, 26263280), (2, 13131640), (4, 6565820), (5, 5252656), (8, 3282910), (10, 2626328), (16, 1641455), (20, 1313164), (40, 656582), (80, 328291)]