81247984

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{118093}}^1$

素因数の和:118144

約数の個数: 20

約数和(自身を含む): 161080216

約数和(自身を除く): 79832232

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 118093, 236186, 472372, 944744, 1889488, 5077999, 10155998, 20311996, 40623992, 81247984]

約数ペア:

[(1, 81247984), (2, 40623992), (4, 20311996), (8, 10155998), (16, 5077999), (43, 1889488), (86, 944744), (172, 472372), (344, 236186), (688, 118093)]