208688620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1490633}}^1$

素因数の和:1490649

約数の個数: 24

約数和(自身を含む): 500853024

約数和(自身を除く): 292164404

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1490633, 2981266, 5962532, 7453165, 10434431, 14906330, 20868862, 29812660, 41737724, 52172155, 104344310, 208688620]

約数ペア:

[(1, 208688620), (2, 104344310), (4, 52172155), (5, 41737724), (7, 29812660), (10, 20868862), (14, 14906330), (20, 10434431), (28, 7453165), (35, 5962532), (70, 2981266), (140, 1490633)]