641231306

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{193}}^1\times {\mathrm{72227}}^1$

素因数の和:72445

約数の個数: 16

約数和(自身を含む): 1008880704

約数和(自身を除く): 367649398

約数列:

[1, 2, 23, 46, 193, 386, 4439, 8878, 72227, 144454, 1661221, 3322442, 13939811, 27879622, 320615653, 641231306]

約数ペア:

[(1, 641231306), (2, 320615653), (23, 27879622), (46, 13939811), (193, 3322442), (386, 1661221), (4439, 144454), (8878, 72227)]