19205840

素因数分解:

$2^4\times 5^1\times {\mathrm{240073}}^1$

素因数の和:240086

約数の個数: 20

約数和(自身を含む): 44653764

約数和(自身を除く): 25447924

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 240073, 480146, 960292, 1200365, 1920584, 2400730, 3841168, 4801460, 9602920, 19205840]

約数ペア:

[(1, 19205840), (2, 9602920), (4, 4801460), (5, 3841168), (8, 2400730), (10, 1920584), (16, 1200365), (20, 960292), (40, 480146), (80, 240073)]