199484080

素因数分解:

$2^4\times 5^1\times {\mathrm{2493551}}^1$

素因数の和:2493564

約数の個数: 20

約数和(自身を含む): 463800672

約数和(自身を除く): 264316592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2493551, 4987102, 9974204, 12467755, 19948408, 24935510, 39896816, 49871020, 99742040, 199484080]

約数ペア:

[(1, 199484080), (2, 99742040), (4, 49871020), (5, 39896816), (8, 24935510), (10, 19948408), (16, 12467755), (20, 9974204), (40, 4987102), (80, 2493551)]