20805248

素因数分解:

$2^7\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{191}}^1$

素因数の和:265

約数の個数: 64

約数和(自身を含む): 44651520

約数和(自身を除く): 23846272

約数列:

[1, 2, 4, 8, 16, 23, 32, 37, 46, 64, 74, 92, 128, 148, 184, 191, 296, 368, 382, 592, 736, 764, 851, 1184, 1472, 1528, 1702, 2368, 2944, 3056, 3404, 4393, 4736, 6112, 6808, 7067, 8786, 12224, 13616, 14134, 17572, 24448, 27232, 28268, 35144, 54464, 56536, 70288, 108928, 113072, 140576, 162541, 226144, 281152, 325082, 452288, 562304, 650164, 904576, 1300328, 2600656, 5201312, 10402624, 20805248]

約数ペア:

[(1, 20805248), (2, 10402624), (4, 5201312), (8, 2600656), (16, 1300328), (23, 904576), (32, 650164), (37, 562304), (46, 452288), (64, 325082), (74, 281152), (92, 226144), (128, 162541), (148, 140576), (184, 113072), (191, 108928), (296, 70288), (368, 56536), (382, 54464), (592, 35144), (736, 28268), (764, 27232), (851, 24448), (1184, 17572), (1472, 14134), (1528, 13616), (1702, 12224), (2368, 8786), (2944, 7067), (3056, 6808), (3404, 6112), (4393, 4736)]