81975656

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{47221}}^1$

素因数の和:47265

約数の個数: 32

約数和(自身を含む): 181332480

約数和(自身を除く): 99356824

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 124, 217, 248, 434, 868, 1736, 47221, 94442, 188884, 330547, 377768, 661094, 1322188, 1463851, 2644376, 2927702, 5855404, 10246957, 11710808, 20493914, 40987828, 81975656]

約数ペア:

[(1, 81975656), (2, 40987828), (4, 20493914), (7, 11710808), (8, 10246957), (14, 5855404), (28, 2927702), (31, 2644376), (56, 1463851), (62, 1322188), (124, 661094), (217, 377768), (248, 330547), (434, 188884), (868, 94442), (1736, 47221)]