18806440

素因数分解:

$2^3\times 5^1\times {\mathrm{470161}}^1$

素因数の和:470172

約数の個数: 16

約数和(自身を含む): 42314580

約数和(自身を除く): 23508140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 470161, 940322, 1880644, 2350805, 3761288, 4701610, 9403220, 18806440]

約数ペア:

[(1, 18806440), (2, 9403220), (4, 4701610), (5, 3761288), (8, 2350805), (10, 1880644), (20, 940322), (40, 470161)]