20656140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{344269}}^1$

素因数の和:344281

約数の個数: 24

約数和(自身を含む): 57837360

約数和(自身を除く): 37181220

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 344269, 688538, 1032807, 1377076, 1721345, 2065614, 3442690, 4131228, 5164035, 6885380, 10328070, 20656140]

約数ペア:

[(1, 20656140), (2, 10328070), (3, 6885380), (4, 5164035), (5, 4131228), (6, 3442690), (10, 2065614), (12, 1721345), (15, 1377076), (20, 1032807), (30, 688538), (60, 344269)]