19448080

素因数分解:

$2^4\times 5^1\times {\mathrm{243101}}^1$

素因数の和:243114

約数の個数: 20

約数和(自身を含む): 45216972

約数和(自身を除く): 25768892

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 243101, 486202, 972404, 1215505, 1944808, 2431010, 3889616, 4862020, 9724040, 19448080]

約数ペア:

[(1, 19448080), (2, 9724040), (4, 4862020), (5, 3889616), (8, 2431010), (10, 1944808), (16, 1215505), (20, 972404), (40, 486202), (80, 243101)]