31027580

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{11161}}^1$

素因数の和:11309

約数の個数: 24

約数和(自身を含む): 65632560

約数和(自身を除く): 34604980

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 11161, 22322, 44644, 55805, 111610, 223220, 1551379, 3102758, 6205516, 7756895, 15513790, 31027580]

約数ペア:

[(1, 31027580), (2, 15513790), (4, 7756895), (5, 6205516), (10, 3102758), (20, 1551379), (139, 223220), (278, 111610), (556, 55805), (695, 44644), (1390, 22322), (2780, 11161)]