81779792

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{300661}}^1$

素因数の和:300686

約数の個数: 20

約数和(自身を含む): 167769396

約数和(自身を除く): 85989604

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 300661, 601322, 1202644, 2405288, 4810576, 5111237, 10222474, 20444948, 40889896, 81779792]

約数ペア:

[(1, 81779792), (2, 40889896), (4, 20444948), (8, 10222474), (16, 5111237), (17, 4810576), (34, 2405288), (68, 1202644), (136, 601322), (272, 300661)]