20322720

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1283}}^1$

素因数の和:1315

約数の個数: 144

約数和(自身を含む): 75714912

約数和(自身を除く): 55392192

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 32, 33, 36, 40, 44, 45, 48, 55, 60, 66, 72, 80, 88, 90, 96, 99, 110, 120, 132, 144, 160, 165, 176, 180, 198, 220, 240, 264, 288, 330, 352, 360, 396, 440, 480, 495, 528, 660, 720, 792, 880, 990, 1056, 1283, 1320, 1440, 1584, 1760, 1980, 2566, 2640, 3168, 3849, 3960, 5132, 5280, 6415, 7698, 7920, 10264, 11547, 12830, 14113, 15396, 15840, 19245, 20528, 23094, 25660, 28226, 30792, 38490, 41056, 42339, 46188, 51320, 56452, 57735, 61584, 70565, 76980, 84678, 92376, 102640, 112904, 115470, 123168, 127017, 141130, 153960, 169356, 184752, 205280, 211695, 225808, 230940, 254034, 282260, 307920, 338712, 369504, 423390, 451616, 461880, 508068, 564520, 615840, 635085, 677424, 846780, 923760, 1016136, 1129040, 1270170, 1354848, 1693560, 1847520, 2032272, 2258080, 2540340, 3387120, 4064544, 5080680, 6774240, 10161360, 20322720]

約数ペア:

[(1, 20322720), (2, 10161360), (3, 6774240), (4, 5080680), (5, 4064544), (6, 3387120), (8, 2540340), (9, 2258080), (10, 2032272), (11, 1847520), (12, 1693560), (15, 1354848), (16, 1270170), (18, 1129040), (20, 1016136), (22, 923760), (24, 846780), (30, 677424), (32, 635085), (33, 615840), (36, 564520), (40, 508068), (44, 461880), (45, 451616), (48, 423390), (55, 369504), (60, 338712), (66, 307920), (72, 282260), (80, 254034), (88, 230940), (90, 225808), (96, 211695), (99, 205280), (110, 184752), (120, 169356), (132, 153960), (144, 141130), (160, 127017), (165, 123168), (176, 115470), (180, 112904), (198, 102640), (220, 92376), (240, 84678), (264, 76980), (288, 70565), (330, 61584), (352, 57735), (360, 56452), (396, 51320), (440, 46188), (480, 42339), (495, 41056), (528, 38490), (660, 30792), (720, 28226), (792, 25660), (880, 23094), (990, 20528), (1056, 19245), (1283, 15840), (1320, 15396), (1440, 14113), (1584, 12830), (1760, 11547), (1980, 10264), (2566, 7920), (2640, 7698), (3168, 6415), (3849, 5280), (3960, 5132)]