2019925840

素因数分解:

$2^4\times 5^1\times {\mathrm{25249073}}^1$

素因数の和:25249086

約数の個数: 20

約数和(自身を含む): 4696327764

約数和(自身を除く): 2676401924

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 25249073, 50498146, 100996292, 126245365, 201992584, 252490730, 403985168, 504981460, 1009962920, 2019925840]

約数ペア:

[(1, 2019925840), (2, 1009962920), (4, 504981460), (5, 403985168), (8, 252490730), (10, 201992584), (16, 126245365), (20, 100996292), (40, 50498146), (80, 25249073)]