16004360

素因数分解:

$2^3\times 5^1\times {\mathrm{400109}}^1$

素因数の和:400120

約数の個数: 16

約数和(自身を含む): 36009900

約数和(自身を除く): 20005540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 400109, 800218, 1600436, 2000545, 3200872, 4001090, 8002180, 16004360]

約数ペア:

[(1, 16004360), (2, 8002180), (4, 4001090), (5, 3200872), (8, 2000545), (10, 1600436), (20, 800218), (40, 400109)]