81991168

素因数分解:

$2^9\times 7^1\times {\mathrm{22877}}^1$

素因数の和:22902

約数の個数: 40

約数和(自身を含む): 187233552

約数和(自身を除く): 105242384

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 512, 896, 1792, 3584, 22877, 45754, 91508, 160139, 183016, 320278, 366032, 640556, 732064, 1281112, 1464128, 2562224, 2928256, 5124448, 5856512, 10248896, 11713024, 20497792, 40995584, 81991168]

約数ペア:

[(1, 81991168), (2, 40995584), (4, 20497792), (7, 11713024), (8, 10248896), (14, 5856512), (16, 5124448), (28, 2928256), (32, 2562224), (56, 1464128), (64, 1281112), (112, 732064), (128, 640556), (224, 366032), (256, 320278), (448, 183016), (512, 160139), (896, 91508), (1792, 45754), (3584, 22877)]