19213520

素因数分解:

$2^4\times 5^1\times {\mathrm{240169}}^1$

素因数の和:240182

約数の個数: 20

約数和(自身を含む): 44671620

約数和(自身を除く): 25458100

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 240169, 480338, 960676, 1200845, 1921352, 2401690, 3842704, 4803380, 9606760, 19213520]

約数ペア:

[(1, 19213520), (2, 9606760), (4, 4803380), (5, 3842704), (8, 2401690), (10, 1921352), (16, 1200845), (20, 960676), (40, 480338), (80, 240169)]