338889680

素因数分解:

$2^4\times 5^1\times {\mathrm{4236121}}^1$

素因数の和:4236134

約数の個数: 20

約数和(自身を含む): 787918692

約数和(自身を除く): 449029012

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4236121, 8472242, 16944484, 21180605, 33888968, 42361210, 67777936, 84722420, 169444840, 338889680]

約数ペア:

[(1, 338889680), (2, 169444840), (4, 84722420), (5, 67777936), (8, 42361210), (10, 33888968), (16, 21180605), (20, 16944484), (40, 8472242), (80, 4236121)]