2688220

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{523}}^1$

素因数の和:789

約数の個数: 24

約数和(自身を含む): 5678064

約数和(自身を除く): 2989844

約数列:

[1, 2, 4, 5, 10, 20, 257, 514, 523, 1028, 1046, 1285, 2092, 2570, 2615, 5140, 5230, 10460, 134411, 268822, 537644, 672055, 1344110, 2688220]

約数ペア:

[(1, 2688220), (2, 1344110), (4, 672055), (5, 537644), (10, 268822), (20, 134411), (257, 10460), (514, 5230), (523, 5140), (1028, 2615), (1046, 2570), (1285, 2092)]