85380220

素因数分解:

$2^2\times 5^1\times {\mathrm{1277}}^1\times {\mathrm{3343}}^1$

素因数の和:4629

約数の個数: 24

約数和(自身を含む): 179492544

約数和(自身を除く): 94112324

約数列:

[1, 2, 4, 5, 10, 20, 1277, 2554, 3343, 5108, 6385, 6686, 12770, 13372, 16715, 25540, 33430, 66860, 4269011, 8538022, 17076044, 21345055, 42690110, 85380220]

約数ペア:

[(1, 85380220), (2, 42690110), (4, 21345055), (5, 17076044), (10, 8538022), (20, 4269011), (1277, 66860), (2554, 33430), (3343, 25540), (5108, 16715), (6385, 13372), (6686, 12770)]