19770760

素因数分解:

$2^3\times 5^1\times {\mathrm{494269}}^1$

素因数の和:494280

約数の個数: 16

約数和(自身を含む): 44484300

約数和(自身を除く): 24713540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 494269, 988538, 1977076, 2471345, 3954152, 4942690, 9885380, 19770760]

約数ペア:

[(1, 19770760), (2, 9885380), (4, 4942690), (5, 3954152), (8, 2471345), (10, 1977076), (20, 988538), (40, 494269)]