28667290

素因数分解:

$2^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{42787}}^1$

素因数の和:42861

約数の個数: 16

約数和(自身を含む): 52372512

約数和(自身を除く): 23705222

約数列:

[1, 2, 5, 10, 67, 134, 335, 670, 42787, 85574, 213935, 427870, 2866729, 5733458, 14333645, 28667290]

約数ペア:

[(1, 28667290), (2, 14333645), (5, 5733458), (10, 2866729), (67, 427870), (134, 213935), (335, 85574), (670, 42787)]