66640238

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{280001}}^1$

素因数の和:280027

約数の個数: 16

約数和(自身を含む): 120960864

約数和(自身を除く): 54320626

約数列:

[1, 2, 7, 14, 17, 34, 119, 238, 280001, 560002, 1960007, 3920014, 4760017, 9520034, 33320119, 66640238]

約数ペア:

[(1, 66640238), (2, 33320119), (7, 9520034), (14, 4760017), (17, 3920014), (34, 1960007), (119, 560002), (238, 280001)]