639888902

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{1307}}^1\times {\mathrm{4013}}^1$

素因数の和:5383

約数の個数: 16

約数和(自身を含む): 976558032

約数和(自身を除く): 336669130

約数列:

[1, 2, 61, 122, 1307, 2614, 4013, 8026, 79727, 159454, 244793, 489586, 5244991, 10489982, 319944451, 639888902]

約数ペア:

[(1, 639888902), (2, 319944451), (61, 10489982), (122, 5244991), (1307, 489586), (2614, 244793), (4013, 159454), (8026, 79727)]