205509728

素因数分解:

$2^5\times {\mathrm{43}}^1\times {\mathrm{233}}^1\times {\mathrm{641}}^1$

素因数の和:927

約数の個数: 48

約数和(自身を含む): 416432016

約数和(自身を除く): 210922288

約数列:

[1, 2, 4, 8, 16, 32, 43, 86, 172, 233, 344, 466, 641, 688, 932, 1282, 1376, 1864, 2564, 3728, 5128, 7456, 10019, 10256, 20038, 20512, 27563, 40076, 55126, 80152, 110252, 149353, 160304, 220504, 298706, 320608, 441008, 597412, 882016, 1194824, 2389648, 4779296, 6422179, 12844358, 25688716, 51377432, 102754864, 205509728]

約数ペア:

[(1, 205509728), (2, 102754864), (4, 51377432), (8, 25688716), (16, 12844358), (32, 6422179), (43, 4779296), (86, 2389648), (172, 1194824), (233, 882016), (344, 597412), (466, 441008), (641, 320608), (688, 298706), (932, 220504), (1282, 160304), (1376, 149353), (1864, 110252), (2564, 80152), (3728, 55126), (5128, 40076), (7456, 27563), (10019, 20512), (10256, 20038)]