19728760

素因数分解:

$2^3\times 5^1\times {\mathrm{493219}}^1$

素因数の和:493230

約数の個数: 16

約数和(自身を含む): 44389800

約数和(自身を除く): 24661040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 493219, 986438, 1972876, 2466095, 3945752, 4932190, 9864380, 19728760]

約数ペア:

[(1, 19728760), (2, 9864380), (4, 4932190), (5, 3945752), (8, 2466095), (10, 1972876), (20, 986438), (40, 493219)]