51720640

素因数分解:

$2^6\times 5^1\times {\mathrm{161627}}^1$

素因数の和:161644

約数の個数: 28

約数和(自身を含む): 123160536

約数和(自身を除く): 71439896

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 161627, 323254, 646508, 808135, 1293016, 1616270, 2586032, 3232540, 5172064, 6465080, 10344128, 12930160, 25860320, 51720640]

約数ペア:

[(1, 51720640), (2, 25860320), (4, 12930160), (5, 10344128), (8, 6465080), (10, 5172064), (16, 3232540), (20, 2586032), (32, 1616270), (40, 1293016), (64, 808135), (80, 646508), (160, 323254), (320, 161627)]