204740

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{353}}^1$

素因数の和:391

約数の個数: 24

約数和(自身を含む): 446040

約数和(自身を除く): 241300

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 353, 580, 706, 1412, 1765, 3530, 7060, 10237, 20474, 40948, 51185, 102370, 204740]

約数ペア:

[(1, 204740), (2, 102370), (4, 51185), (5, 40948), (10, 20474), (20, 10237), (29, 7060), (58, 3530), (116, 1765), (145, 1412), (290, 706), (353, 580)]