20776912

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1$

素因数の和:188

約数の個数: 80

約数和(自身を含む): 46747008

約数和(自身を除く): 25970096

約数列:

[1, 2, 4, 8, 13, 16, 23, 26, 43, 46, 52, 86, 92, 101, 104, 172, 184, 202, 208, 299, 344, 368, 404, 559, 598, 688, 808, 989, 1118, 1196, 1313, 1616, 1978, 2236, 2323, 2392, 2626, 3956, 4343, 4472, 4646, 4784, 5252, 7912, 8686, 8944, 9292, 10504, 12857, 15824, 17372, 18584, 21008, 25714, 30199, 34744, 37168, 51428, 56459, 60398, 69488, 99889, 102856, 112918, 120796, 199778, 205712, 225836, 241592, 399556, 451672, 483184, 799112, 903344, 1298557, 1598224, 2597114, 5194228, 10388456, 20776912]

約数ペア:

[(1, 20776912), (2, 10388456), (4, 5194228), (8, 2597114), (13, 1598224), (16, 1298557), (23, 903344), (26, 799112), (43, 483184), (46, 451672), (52, 399556), (86, 241592), (92, 225836), (101, 205712), (104, 199778), (172, 120796), (184, 112918), (202, 102856), (208, 99889), (299, 69488), (344, 60398), (368, 56459), (404, 51428), (559, 37168), (598, 34744), (688, 30199), (808, 25714), (989, 21008), (1118, 18584), (1196, 17372), (1313, 15824), (1616, 12857), (1978, 10504), (2236, 9292), (2323, 8944), (2392, 8686), (2626, 7912), (3956, 5252), (4343, 4784), (4472, 4646)]