640956806

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1476859}}^1$

素因数の和:1476899

約数の個数: 16

約数和(自身を含む): 1134228480

約数和(自身を除く): 493271674

約数列:

[1, 2, 7, 14, 31, 62, 217, 434, 1476859, 2953718, 10338013, 20676026, 45782629, 91565258, 320478403, 640956806]

約数ペア:

[(1, 640956806), (2, 320478403), (7, 91565258), (14, 45782629), (31, 20676026), (62, 10338013), (217, 2953718), (434, 1476859)]