22278320

素因数分解:

$2^4\times 5^1\times {\mathrm{278479}}^1$

素因数の和:278492

約数の個数: 20

約数和(自身を含む): 51797280

約数和(自身を除く): 29518960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 278479, 556958, 1113916, 1392395, 2227832, 2784790, 4455664, 5569580, 11139160, 22278320]

約数ペア:

[(1, 22278320), (2, 11139160), (4, 5569580), (5, 4455664), (8, 2784790), (10, 2227832), (16, 1392395), (20, 1113916), (40, 556958), (80, 278479)]