81328

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1$

素因数の和:61

約数の個数: 40

約数和(自身を含む): 187488

約数和(自身を除く): 106160

約数列:

[1, 2, 4, 8, 13, 16, 17, 23, 26, 34, 46, 52, 68, 92, 104, 136, 184, 208, 221, 272, 299, 368, 391, 442, 598, 782, 884, 1196, 1564, 1768, 2392, 3128, 3536, 4784, 5083, 6256, 10166, 20332, 40664, 81328]

約数ペア:

[(1, 81328), (2, 40664), (4, 20332), (8, 10166), (13, 6256), (16, 5083), (17, 4784), (23, 3536), (26, 3128), (34, 2392), (46, 1768), (52, 1564), (68, 1196), (92, 884), (104, 782), (136, 598), (184, 442), (208, 391), (221, 368), (272, 299)]