209722840

素因数分解:

$2^3\times 5^1\times {\mathrm{5243071}}^1$

素因数の和:5243082

約数の個数: 16

約数和(自身を含む): 471876480

約数和(自身を除く): 262153640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5243071, 10486142, 20972284, 26215355, 41944568, 52430710, 104861420, 209722840]

約数ペア:

[(1, 209722840), (2, 104861420), (4, 52430710), (5, 41944568), (8, 26215355), (10, 20972284), (20, 10486142), (40, 5243071)]