89345420

素因数分解:

$2^2\times 5^1\times {\mathrm{4467271}}^1$

素因数の和:4467280

約数の個数: 12

約数和(自身を含む): 187625424

約数和(自身を除く): 98280004

約数列:

[1, 2, 4, 5, 10, 20, 4467271, 8934542, 17869084, 22336355, 44672710, 89345420]

約数ペア:

[(1, 89345420), (2, 44672710), (4, 22336355), (5, 17869084), (10, 8934542), (20, 4467271)]