20402608

素因数分解:

$2^4\times {\mathrm{997}}^1\times {\mathrm{1279}}^1$

素因数の和:2284

約数の個数: 20

約数和(自身を含む): 39600640

約数和(自身を除く): 19198032

約数列:

[1, 2, 4, 8, 16, 997, 1279, 1994, 2558, 3988, 5116, 7976, 10232, 15952, 20464, 1275163, 2550326, 5100652, 10201304, 20402608]

約数ペア:

[(1, 20402608), (2, 10201304), (4, 5100652), (8, 2550326), (16, 1275163), (997, 20464), (1279, 15952), (1994, 10232), (2558, 7976), (3988, 5116)]