489995

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{151}}^1$

素因数の和:226

約数の個数: 16

約数和(自身を含む): 656640

約数和(自身を除く): 166645

約数列:

[1, 5, 11, 55, 59, 151, 295, 649, 755, 1661, 3245, 8305, 8909, 44545, 97999, 489995]

約数ペア:

[(1, 489995), (5, 97999), (11, 44545), (55, 8909), (59, 8305), (151, 3245), (295, 1661), (649, 755)]