664432

素因数分解:

$2^4\times {\mathrm{131}}^1\times {\mathrm{317}}^1$

素因数の和:456

約数の個数: 20

約数和(自身を含む): 1301256

約数和(自身を除く): 636824

約数列:

[1, 2, 4, 8, 16, 131, 262, 317, 524, 634, 1048, 1268, 2096, 2536, 5072, 41527, 83054, 166108, 332216, 664432]

約数ペア:

[(1, 664432), (2, 332216), (4, 166108), (8, 83054), (16, 41527), (131, 5072), (262, 2536), (317, 2096), (524, 1268), (634, 1048)]