19648220

素因数分解:

$2^2\times 5^1\times {\mathrm{919}}^1\times {\mathrm{1069}}^1$

素因数の和:1997

約数の個数: 24

約数和(自身を含む): 41344800

約数和(自身を除く): 21696580

約数列:

[1, 2, 4, 5, 10, 20, 919, 1069, 1838, 2138, 3676, 4276, 4595, 5345, 9190, 10690, 18380, 21380, 982411, 1964822, 3929644, 4912055, 9824110, 19648220]

約数ペア:

[(1, 19648220), (2, 9824110), (4, 4912055), (5, 3929644), (10, 1964822), (20, 982411), (919, 21380), (1069, 18380), (1838, 10690), (2138, 9190), (3676, 5345), (4276, 4595)]