19905285968

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{54090451}}^1$

素因数の和:54090482

約数の個数: 20

約数和(自身を含む): 40243296288

約数和(自身を除く): 20338010320

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 54090451, 108180902, 216361804, 432723608, 865447216, 1244080373, 2488160746, 4976321492, 9952642984, 19905285968]

約数ペア:

[(1, 19905285968), (2, 9952642984), (4, 4976321492), (8, 2488160746), (16, 1244080373), (23, 865447216), (46, 432723608), (92, 216361804), (184, 108180902), (368, 54090451)]