20217491710

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{679123}}^1$

素因数の和:679372

約数の個数: 32

約数和(自身を含む): 39362027040

約数和(自身を除く): 19144535330

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 229, 458, 1145, 2290, 2977, 5954, 14885, 29770, 679123, 1358246, 3395615, 6791230, 8828599, 17657198, 44142995, 88285990, 155519167, 311038334, 777595835, 1555191670, 2021749171, 4043498342, 10108745855, 20217491710]

約数ペア:

[(1, 20217491710), (2, 10108745855), (5, 4043498342), (10, 2021749171), (13, 1555191670), (26, 777595835), (65, 311038334), (130, 155519167), (229, 88285990), (458, 44142995), (1145, 17657198), (2290, 8828599), (2977, 6791230), (5954, 3395615), (14885, 1358246), (29770, 679123)]