20278736

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{17851}}^1$

素因数の和:17930

約数の個数: 20

約数和(自身を含む): 39845664

約数和(自身を除く): 19566928

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 17851, 35702, 71404, 142808, 285616, 1267421, 2534842, 5069684, 10139368, 20278736]

約数ペア:

[(1, 20278736), (2, 10139368), (4, 5069684), (8, 2534842), (16, 1267421), (71, 285616), (142, 142808), (284, 71404), (568, 35702), (1136, 17851)]