11818340

素因数分解:

$2^2\times 5^1\times {\mathrm{643}}^1\times {\mathrm{919}}^1$

素因数の和:1571

約数の個数: 24

約数和(自身を含む): 24884160

約数和(自身を除く): 13065820

約数列:

[1, 2, 4, 5, 10, 20, 643, 919, 1286, 1838, 2572, 3215, 3676, 4595, 6430, 9190, 12860, 18380, 590917, 1181834, 2363668, 2954585, 5909170, 11818340]

約数ペア:

[(1, 11818340), (2, 5909170), (4, 2954585), (5, 2363668), (10, 1181834), (20, 590917), (643, 18380), (919, 12860), (1286, 9190), (1838, 6430), (2572, 4595), (3215, 3676)]