139538120

素因数分解:

$2^3\times 5^1\times {\mathrm{3488453}}^1$

素因数の和:3488464

約数の個数: 16

約数和(自身を含む): 313960860

約数和(自身を除く): 174422740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3488453, 6976906, 13953812, 17442265, 27907624, 34884530, 69769060, 139538120]

約数ペア:

[(1, 139538120), (2, 69769060), (4, 34884530), (5, 27907624), (8, 17442265), (10, 13953812), (20, 6976906), (40, 3488453)]