641700608

素因数分解:

$2^8\times {\mathrm{2506643}}^1$

素因数の和:2506659

約数の個数: 18

約数和(自身を含む): 1280895084

約数和(自身を除く): 639194476

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 2506643, 5013286, 10026572, 20053144, 40106288, 80212576, 160425152, 320850304, 641700608]

約数ペア:

[(1, 641700608), (2, 320850304), (4, 160425152), (8, 80212576), (16, 40106288), (32, 20053144), (64, 10026572), (128, 5013286), (256, 2506643)]