81109168

素因数分解:

$2^4\times 7^1\times {\mathrm{347}}^1\times {\mathrm{2087}}^1$

素因数の和:2449

約数の個数: 40

約数和(自身を含む): 180202752

約数和(自身を除く): 99093584

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 347, 694, 1388, 2087, 2429, 2776, 4174, 4858, 5552, 8348, 9716, 14609, 16696, 19432, 29218, 33392, 38864, 58436, 116872, 233744, 724189, 1448378, 2896756, 5069323, 5793512, 10138646, 11587024, 20277292, 40554584, 81109168]

約数ペア:

[(1, 81109168), (2, 40554584), (4, 20277292), (7, 11587024), (8, 10138646), (14, 5793512), (16, 5069323), (28, 2896756), (56, 1448378), (112, 724189), (347, 233744), (694, 116872), (1388, 58436), (2087, 38864), (2429, 33392), (2776, 29218), (4174, 19432), (4858, 16696), (5552, 14609), (8348, 9716)]