660165

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{4001}}^1$

素因数の和:4020

約数の個数: 16

約数和(自身を含む): 1152576

約数和(自身を除く): 492411

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 4001, 12003, 20005, 44011, 60015, 132033, 220055, 660165]

約数ペア:

[(1, 660165), (3, 220055), (5, 132033), (11, 60015), (15, 44011), (33, 20005), (55, 12003), (165, 4001)]