31218540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{520309}}^1$

素因数の和:520321

約数の個数: 24

約数和(自身を含む): 87412080

約数和(自身を除く): 56193540

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 520309, 1040618, 1560927, 2081236, 2601545, 3121854, 5203090, 6243708, 7804635, 10406180, 15609270, 31218540]

約数ペア:

[(1, 31218540), (2, 15609270), (3, 10406180), (4, 7804635), (5, 6243708), (6, 5203090), (10, 3121854), (12, 2601545), (15, 2081236), (20, 1560927), (30, 1040618), (60, 520309)]