19491320

素因数分解:

$2^3\times 5^1\times {\mathrm{487283}}^1$

素因数の和:487294

約数の個数: 16

約数和(自身を含む): 43855560

約数和(自身を除く): 24364240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 487283, 974566, 1949132, 2436415, 3898264, 4872830, 9745660, 19491320]

約数ペア:

[(1, 19491320), (2, 9745660), (4, 4872830), (5, 3898264), (8, 2436415), (10, 1949132), (20, 974566), (40, 487283)]