339919280

素因数分解:

$2^4\times 5^1\times {\mathrm{4248991}}^1$

素因数の和:4249004

約数の個数: 20

約数和(自身を含む): 790312512

約数和(自身を除く): 450393232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4248991, 8497982, 16995964, 21244955, 33991928, 42489910, 67983856, 84979820, 169959640, 339919280]

約数ペア:

[(1, 339919280), (2, 169959640), (4, 84979820), (5, 67983856), (8, 42489910), (10, 33991928), (16, 21244955), (20, 16995964), (40, 8497982), (80, 4248991)]