20800144

素因数分解:

$2^4\times {\mathrm{263}}^1\times {\mathrm{4943}}^1$

素因数の和:5214

約数の個数: 20

約数和(自身を含む): 40461696

約数和(自身を除く): 19661552

約数列:

[1, 2, 4, 8, 16, 263, 526, 1052, 2104, 4208, 4943, 9886, 19772, 39544, 79088, 1300009, 2600018, 5200036, 10400072, 20800144]

約数ペア:

[(1, 20800144), (2, 10400072), (4, 5200036), (8, 2600018), (16, 1300009), (263, 79088), (526, 39544), (1052, 19772), (2104, 9886), (4208, 4943)]