19794520

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{10529}}^1$

素因数の和:10587

約数の個数: 32

約数和(自身を含む): 45489600

約数和(自身を除く): 25695080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 10529, 21058, 42116, 52645, 84232, 105290, 210580, 421160, 494863, 989726, 1979452, 2474315, 3958904, 4948630, 9897260, 19794520]

約数ペア:

[(1, 19794520), (2, 9897260), (4, 4948630), (5, 3958904), (8, 2474315), (10, 1979452), (20, 989726), (40, 494863), (47, 421160), (94, 210580), (188, 105290), (235, 84232), (376, 52645), (470, 42116), (940, 21058), (1880, 10529)]