217353040

素因数分解:

$2^4\times 5^1\times {\mathrm{2716913}}^1$

素因数の和:2716926

約数の個数: 20

約数和(自身を含む): 505346004

約数和(自身を除く): 287992964

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2716913, 5433826, 10867652, 13584565, 21735304, 27169130, 43470608, 54338260, 108676520, 217353040]

約数ペア:

[(1, 217353040), (2, 108676520), (4, 54338260), (5, 43470608), (8, 27169130), (10, 21735304), (16, 13584565), (20, 10867652), (40, 5433826), (80, 2716913)]