19136840

素因数分解:

$2^3\times 5^1\times {\mathrm{478421}}^1$

素因数の和:478432

約数の個数: 16

約数和(自身を含む): 43057980

約数和(自身を除く): 23921140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 478421, 956842, 1913684, 2392105, 3827368, 4784210, 9568420, 19136840]

約数ペア:

[(1, 19136840), (2, 9568420), (4, 4784210), (5, 3827368), (8, 2392105), (10, 1913684), (20, 956842), (40, 478421)]