471280

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:193

約数の個数: 40

約数和(自身を含む): 1129392

約数和(自身を除く): 658112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 137, 172, 215, 274, 344, 430, 548, 685, 688, 860, 1096, 1370, 1720, 2192, 2740, 3440, 5480, 5891, 10960, 11782, 23564, 29455, 47128, 58910, 94256, 117820, 235640, 471280]

約数ペア:

[(1, 471280), (2, 235640), (4, 117820), (5, 94256), (8, 58910), (10, 47128), (16, 29455), (20, 23564), (40, 11782), (43, 10960), (80, 5891), (86, 5480), (137, 3440), (172, 2740), (215, 2192), (274, 1720), (344, 1370), (430, 1096), (548, 860), (685, 688)]