19433780

素因数分解:

$2^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{1979}}^1$

素因数の和:2479

約数の個数: 24

約数和(自身を含む): 40914720

約数和(自身を除く): 21480940

約数列:

[1, 2, 4, 5, 10, 20, 491, 982, 1964, 1979, 2455, 3958, 4910, 7916, 9820, 9895, 19790, 39580, 971689, 1943378, 3886756, 4858445, 9716890, 19433780]

約数ペア:

[(1, 19433780), (2, 9716890), (4, 4858445), (5, 3886756), (10, 1943378), (20, 971689), (491, 39580), (982, 19790), (1964, 9895), (1979, 9820), (2455, 7916), (3958, 4910)]