209309140

素因数分解:

$2^2\times 5^1\times {\mathrm{853}}^1\times {\mathrm{12269}}^1$

素因数の和:13131

約数の個数: 24

約数和(自身を含む): 440100360

約数和(自身を除く): 230791220

約数列:

[1, 2, 4, 5, 10, 20, 853, 1706, 3412, 4265, 8530, 12269, 17060, 24538, 49076, 61345, 122690, 245380, 10465457, 20930914, 41861828, 52327285, 104654570, 209309140]

約数ペア:

[(1, 209309140), (2, 104654570), (4, 52327285), (5, 41861828), (10, 20930914), (20, 10465457), (853, 245380), (1706, 122690), (3412, 61345), (4265, 49076), (8530, 24538), (12269, 17060)]