18818380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{134417}}^1$

素因数の和:134433

約数の個数: 24

約数和(自身を含む): 45164448

約数和(自身を除く): 26346068

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 134417, 268834, 537668, 672085, 940919, 1344170, 1881838, 2688340, 3763676, 4704595, 9409190, 18818380]

約数ペア:

[(1, 18818380), (2, 9409190), (4, 4704595), (5, 3763676), (7, 2688340), (10, 1881838), (14, 1344170), (20, 940919), (28, 672085), (35, 537668), (70, 268834), (140, 134417)]