12691390

素因数分解:

$2^1\times 5^1\times {\mathrm{919}}^1\times {\mathrm{1381}}^1$

素因数の和:2307

約数の個数: 16

約数和(自身を含む): 22885920

約数和(自身を除く): 10194530

約数列:

[1, 2, 5, 10, 919, 1381, 1838, 2762, 4595, 6905, 9190, 13810, 1269139, 2538278, 6345695, 12691390]

約数ペア:

[(1, 12691390), (2, 6345695), (5, 2538278), (10, 1269139), (919, 13810), (1381, 9190), (1838, 6905), (2762, 4595)]