220186478

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{81611}}^1$

素因数の和:81703

約数の個数: 16

約数和(自身を含む): 352563840

約数和(自身を除く): 132377362

約数列:

[1, 2, 19, 38, 71, 142, 1349, 2698, 81611, 163222, 1550609, 3101218, 5794381, 11588762, 110093239, 220186478]

約数ペア:

[(1, 220186478), (2, 110093239), (19, 11588762), (38, 5794381), (71, 3101218), (142, 1550609), (1349, 163222), (2698, 81611)]