81417728

素因数分解:

$2^9\times 7^1\times {\mathrm{22717}}^1$

素因数の和:22742

約数の個数: 40

約数和(自身を含む): 185924112

約数和(自身を除く): 104506384

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 512, 896, 1792, 3584, 22717, 45434, 90868, 159019, 181736, 318038, 363472, 636076, 726944, 1272152, 1453888, 2544304, 2907776, 5088608, 5815552, 10177216, 11631104, 20354432, 40708864, 81417728]

約数ペア:

[(1, 81417728), (2, 40708864), (4, 20354432), (7, 11631104), (8, 10177216), (14, 5815552), (16, 5088608), (28, 2907776), (32, 2544304), (56, 1453888), (64, 1272152), (112, 726944), (128, 636076), (224, 363472), (256, 318038), (448, 181736), (512, 159019), (896, 90868), (1792, 45434), (3584, 22717)]