518392120

素因数分解:

$2^3\times 5^1\times {\mathrm{12959803}}^1$

素因数の和:12959814

約数の個数: 16

約数和(自身を含む): 1166382360

約数和(自身を除く): 647990240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 12959803, 25919606, 51839212, 64799015, 103678424, 129598030, 259196060, 518392120]

約数ペア:

[(1, 518392120), (2, 259196060), (4, 129598030), (5, 103678424), (8, 64799015), (10, 51839212), (20, 25919606), (40, 12959803)]