205120904

素因数分解:

$2^3\times {\mathrm{1279}}^1\times {\mathrm{20047}}^1$

素因数の和:21332

約数の個数: 16

約数和(自身を含む): 384921600

約数和(自身を除く): 179800696

約数列:

[1, 2, 4, 8, 1279, 2558, 5116, 10232, 20047, 40094, 80188, 160376, 25640113, 51280226, 102560452, 205120904]

約数ペア:

[(1, 205120904), (2, 102560452), (4, 51280226), (8, 25640113), (1279, 160376), (2558, 80188), (5116, 40094), (10232, 20047)]