16188220

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{1979}}^1$

素因数の和:2397

約数の個数: 24

約数和(自身を含む): 34095600

約数和(自身を除く): 17907380

約数列:

[1, 2, 4, 5, 10, 20, 409, 818, 1636, 1979, 2045, 3958, 4090, 7916, 8180, 9895, 19790, 39580, 809411, 1618822, 3237644, 4047055, 8094110, 16188220]

約数ペア:

[(1, 16188220), (2, 8094110), (4, 4047055), (5, 3237644), (10, 1618822), (20, 809411), (409, 39580), (818, 19790), (1636, 9895), (1979, 8180), (2045, 7916), (3958, 4090)]