20708840

素因数分解:

$2^3\times 5^1\times {\mathrm{517721}}^1$

素因数の和:517732

約数の個数: 16

約数和(自身を含む): 46594980

約数和(自身を除く): 25886140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 517721, 1035442, 2070884, 2588605, 4141768, 5177210, 10354420, 20708840]

約数ペア:

[(1, 20708840), (2, 10354420), (4, 5177210), (5, 4141768), (8, 2588605), (10, 2070884), (20, 1035442), (40, 517721)]