28744660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{205319}}^1$

素因数の和:205335

約数の個数: 24

約数和(自身を含む): 68987520

約数和(自身を除く): 40242860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 205319, 410638, 821276, 1026595, 1437233, 2053190, 2874466, 4106380, 5748932, 7186165, 14372330, 28744660]

約数ペア:

[(1, 28744660), (2, 14372330), (4, 7186165), (5, 5748932), (7, 4106380), (10, 2874466), (14, 2053190), (20, 1437233), (28, 1026595), (35, 821276), (70, 410638), (140, 205319)]