20636440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{46901}}^1$

素因数の和:46923

約数の個数: 32

約数和(自身を含む): 50654160

約数和(自身を除く): 30017720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 46901, 93802, 187604, 234505, 375208, 469010, 515911, 938020, 1031822, 1876040, 2063644, 2579555, 4127288, 5159110, 10318220, 20636440]

約数ペア:

[(1, 20636440), (2, 10318220), (4, 5159110), (5, 4127288), (8, 2579555), (10, 2063644), (11, 1876040), (20, 1031822), (22, 938020), (40, 515911), (44, 469010), (55, 375208), (88, 234505), (110, 187604), (220, 93802), (440, 46901)]