12520420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{56911}}^1$

素因数の和:56931

約数の個数: 24

約数和(自身を含む): 28683648

約数和(自身を除く): 16163228

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 56911, 113822, 227644, 284555, 569110, 626021, 1138220, 1252042, 2504084, 3130105, 6260210, 12520420]

約数ペア:

[(1, 12520420), (2, 6260210), (4, 3130105), (5, 2504084), (10, 1252042), (11, 1138220), (20, 626021), (22, 569110), (44, 284555), (55, 227644), (110, 113822), (220, 56911)]