121420420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{551911}}^1$

素因数の和:551931

約数の個数: 24

約数和(自身を含む): 278163648

約数和(自身を除く): 156743228

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 551911, 1103822, 2207644, 2759555, 5519110, 6071021, 11038220, 12142042, 24284084, 30355105, 60710210, 121420420]

約数ペア:

[(1, 121420420), (2, 60710210), (4, 30355105), (5, 24284084), (10, 12142042), (11, 11038220), (20, 6071021), (22, 5519110), (44, 2759555), (55, 2207644), (110, 1103822), (220, 551911)]