80154440

素因数分解:

$2^3\times 5^1\times {\mathrm{2003861}}^1$

素因数の和:2003872

約数の個数: 16

約数和(自身を含む): 180347580

約数和(自身を除く): 100193140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2003861, 4007722, 8015444, 10019305, 16030888, 20038610, 40077220, 80154440]

約数ペア:

[(1, 80154440), (2, 40077220), (4, 20038610), (5, 16030888), (8, 10019305), (10, 8015444), (20, 4007722), (40, 2003861)]