400336

素因数分解:

$2^4\times {\mathrm{131}}^1\times {\mathrm{191}}^1$

素因数の和:330

約数の個数: 20

約数和(自身を含む): 785664

約数和(自身を除く): 385328

約数列:

[1, 2, 4, 8, 16, 131, 191, 262, 382, 524, 764, 1048, 1528, 2096, 3056, 25021, 50042, 100084, 200168, 400336]

約数ペア:

[(1, 400336), (2, 200168), (4, 100084), (8, 50042), (16, 25021), (131, 3056), (191, 2096), (262, 1528), (382, 1048), (524, 764)]