990820

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{463}}^1$

素因数の和:579

約数の個数: 24

約数和(自身を含む): 2104704

約数和(自身を除く): 1113884

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 463, 535, 926, 1070, 1852, 2140, 2315, 4630, 9260, 49541, 99082, 198164, 247705, 495410, 990820]

約数ペア:

[(1, 990820), (2, 495410), (4, 247705), (5, 198164), (10, 99082), (20, 49541), (107, 9260), (214, 4630), (428, 2315), (463, 2140), (535, 1852), (926, 1070)]