638049296

素因数分解:

$2^4\times {\mathrm{2591}}^1\times {\mathrm{15391}}^1$

素因数の和:17990

約数の個数: 20

約数和(自身を含む): 1236777984

約数和(自身を除く): 598728688

約数列:

[1, 2, 4, 8, 16, 2591, 5182, 10364, 15391, 20728, 30782, 41456, 61564, 123128, 246256, 39878081, 79756162, 159512324, 319024648, 638049296]

約数ペア:

[(1, 638049296), (2, 319024648), (4, 159512324), (8, 79756162), (16, 39878081), (2591, 246256), (5182, 123128), (10364, 61564), (15391, 41456), (20728, 30782)]