890759990

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{817211}}^1$

素因数の和:817327

約数の個数: 16

約数和(自身を含む): 1618079760

約数和(自身を除く): 727319770

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 817211, 1634422, 4086055, 8172110, 89075999, 178151998, 445379995, 890759990]

約数ペア:

[(1, 890759990), (2, 445379995), (5, 178151998), (10, 89075999), (109, 8172110), (218, 4086055), (545, 1634422), (1090, 817211)]