19404920

素因数分解:

$2^3\times 5^1\times {\mathrm{485123}}^1$

素因数の和:485134

約数の個数: 16

約数和(自身を含む): 43661160

約数和(自身を除く): 24256240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 485123, 970246, 1940492, 2425615, 3880984, 4851230, 9702460, 19404920]

約数ペア:

[(1, 19404920), (2, 9702460), (4, 4851230), (5, 3880984), (8, 2425615), (10, 1940492), (20, 970246), (40, 485123)]