16519120

素因数分解:

$2^4\times 5^1\times {\mathrm{206489}}^1$

素因数の和:206502

約数の個数: 20

約数和(自身を含む): 38407140

約数和(自身を除く): 21888020

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 206489, 412978, 825956, 1032445, 1651912, 2064890, 3303824, 4129780, 8259560, 16519120]

約数ペア:

[(1, 16519120), (2, 8259560), (4, 4129780), (5, 3303824), (8, 2064890), (10, 1651912), (16, 1032445), (20, 825956), (40, 412978), (80, 206489)]