399490864

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{733}}^1\times {\mathrm{1481}}^1$

素因数の和:2245

約数の個数: 40

約数和(自身を含む): 809314272

約数和(自身を除く): 409823408

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 733, 1466, 1481, 2932, 2962, 5864, 5924, 11728, 11848, 16859, 23696, 33718, 34063, 67436, 68126, 134872, 136252, 269744, 272504, 545008, 1085573, 2171146, 4342292, 8684584, 17369168, 24968179, 49936358, 99872716, 199745432, 399490864]

約数ペア:

[(1, 399490864), (2, 199745432), (4, 99872716), (8, 49936358), (16, 24968179), (23, 17369168), (46, 8684584), (92, 4342292), (184, 2171146), (368, 1085573), (733, 545008), (1466, 272504), (1481, 269744), (2932, 136252), (2962, 134872), (5864, 68126), (5924, 67436), (11728, 34063), (11848, 33718), (16859, 23696)]