20442888

素因数分解:

$2^3\times 3^3\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:160

約数の個数: 128

約数和(自身を含む): 60825600

約数和(自身を除く): 40382712

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 31, 36, 43, 54, 62, 71, 72, 86, 93, 108, 124, 129, 142, 172, 186, 213, 216, 248, 258, 279, 284, 344, 372, 387, 426, 516, 558, 568, 639, 744, 774, 837, 852, 1032, 1116, 1161, 1278, 1333, 1548, 1674, 1704, 1917, 2201, 2232, 2322, 2556, 2666, 3053, 3096, 3348, 3834, 3999, 4402, 4644, 5112, 5332, 6106, 6603, 6696, 7668, 7998, 8804, 9159, 9288, 10664, 11997, 12212, 13206, 15336, 15996, 17608, 18318, 19809, 23994, 24424, 26412, 27477, 31992, 35991, 36636, 39618, 47988, 52824, 54954, 59427, 71982, 73272, 79236, 82431, 94643, 95976, 109908, 118854, 143964, 158472, 164862, 189286, 219816, 237708, 283929, 287928, 329724, 378572, 475416, 567858, 659448, 757144, 851787, 1135716, 1703574, 2271432, 2555361, 3407148, 5110722, 6814296, 10221444, 20442888]

約数ペア:

[(1, 20442888), (2, 10221444), (3, 6814296), (4, 5110722), (6, 3407148), (8, 2555361), (9, 2271432), (12, 1703574), (18, 1135716), (24, 851787), (27, 757144), (31, 659448), (36, 567858), (43, 475416), (54, 378572), (62, 329724), (71, 287928), (72, 283929), (86, 237708), (93, 219816), (108, 189286), (124, 164862), (129, 158472), (142, 143964), (172, 118854), (186, 109908), (213, 95976), (216, 94643), (248, 82431), (258, 79236), (279, 73272), (284, 71982), (344, 59427), (372, 54954), (387, 52824), (426, 47988), (516, 39618), (558, 36636), (568, 35991), (639, 31992), (744, 27477), (774, 26412), (837, 24424), (852, 23994), (1032, 19809), (1116, 18318), (1161, 17608), (1278, 15996), (1333, 15336), (1548, 13206), (1674, 12212), (1704, 11997), (1917, 10664), (2201, 9288), (2232, 9159), (2322, 8804), (2556, 7998), (2666, 7668), (3053, 6696), (3096, 6603), (3348, 6106), (3834, 5332), (3999, 5112), (4402, 4644)]