81140908

素因数分解:

$2^2\times {\mathrm{109}}^1\times {\mathrm{186103}}^1$

素因数の和:186216

約数の個数: 12

約数和(自身を含む): 143300080

約数和(自身を除く): 62159172

約数列:

[1, 2, 4, 109, 218, 436, 186103, 372206, 744412, 20285227, 40570454, 81140908]

約数ペア:

[(1, 81140908), (2, 40570454), (4, 20285227), (109, 744412), (218, 372206), (436, 186103)]