1320688

素因数分解:

$2^4\times {\mathrm{197}}^1\times {\mathrm{419}}^1$

素因数の和:624

約数の個数: 20

約数和(自身を含む): 2577960

約数和(自身を除く): 1257272

約数列:

[1, 2, 4, 8, 16, 197, 394, 419, 788, 838, 1576, 1676, 3152, 3352, 6704, 82543, 165086, 330172, 660344, 1320688]

約数ペア:

[(1, 1320688), (2, 660344), (4, 330172), (8, 165086), (16, 82543), (197, 6704), (394, 3352), (419, 3152), (788, 1676), (838, 1576)]