798800

素因数分解:

$2^4\times 5^2\times {\mathrm{1997}}^1$

素因数の和:2015

約数の個数: 30

約数和(自身を含む): 1920078

約数和(自身を除く): 1121278

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 1997, 3994, 7988, 9985, 15976, 19970, 31952, 39940, 49925, 79880, 99850, 159760, 199700, 399400, 798800]

約数ペア:

[(1, 798800), (2, 399400), (4, 199700), (5, 159760), (8, 99850), (10, 79880), (16, 49925), (20, 39940), (25, 31952), (40, 19970), (50, 15976), (80, 9985), (100, 7988), (200, 3994), (400, 1997)]