81157616

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{220537}}^1$

素因数の和:220568

約数の個数: 20

約数和(自身を含む): 164080272

約数和(自身を除く): 82922656

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 220537, 441074, 882148, 1764296, 3528592, 5072351, 10144702, 20289404, 40578808, 81157616]

約数ペア:

[(1, 81157616), (2, 40578808), (4, 20289404), (8, 10144702), (16, 5072351), (23, 3528592), (46, 1764296), (92, 882148), (184, 441074), (368, 220537)]