1684660

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{643}}^1$

素因数の和:783

約数の個数: 24

約数和(自身を含む): 3570336

約数和(自身を除く): 1885676

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 643, 655, 1286, 1310, 2572, 2620, 3215, 6430, 12860, 84233, 168466, 336932, 421165, 842330, 1684660]

約数ペア:

[(1, 1684660), (2, 842330), (4, 421165), (5, 336932), (10, 168466), (20, 84233), (131, 12860), (262, 6430), (524, 3215), (643, 2620), (655, 2572), (1286, 1310)]