20689064

素因数分解:

$2^3\times {\mathrm{11}}^3\times {\mathrm{29}}^1\times {\mathrm{67}}^1$

素因数の和:135

約数の個数: 64

約数和(自身を含む): 44798400

約数和(自身を除く): 24109336

約数列:

[1, 2, 4, 8, 11, 22, 29, 44, 58, 67, 88, 116, 121, 134, 232, 242, 268, 319, 484, 536, 638, 737, 968, 1276, 1331, 1474, 1943, 2552, 2662, 2948, 3509, 3886, 5324, 5896, 7018, 7772, 8107, 10648, 14036, 15544, 16214, 21373, 28072, 32428, 38599, 42746, 64856, 77198, 85492, 89177, 154396, 170984, 178354, 235103, 308792, 356708, 470206, 713416, 940412, 1880824, 2586133, 5172266, 10344532, 20689064]

約数ペア:

[(1, 20689064), (2, 10344532), (4, 5172266), (8, 2586133), (11, 1880824), (22, 940412), (29, 713416), (44, 470206), (58, 356708), (67, 308792), (88, 235103), (116, 178354), (121, 170984), (134, 154396), (232, 89177), (242, 85492), (268, 77198), (319, 64856), (484, 42746), (536, 38599), (638, 32428), (737, 28072), (968, 21373), (1276, 16214), (1331, 15544), (1474, 14036), (1943, 10648), (2552, 8107), (2662, 7772), (2948, 7018), (3509, 5896), (3886, 5324)]