20607840

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1301}}^1$

素因数の和:1333

約数の個数: 144

約数和(自身を含む): 76776336

約数和(自身を除く): 56168496

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, 1301, 1320, 1440, 1584, 1760, 1980, 2602, 2640, 3168, 3903, 3960, 5204, 5280, 6505, 7806, 7920, 10408, 11709, 13010, 14311, 15612, 15840, 19515, 20816, 23418, 26020, 28622, 31224, 39030, 41632, 42933, 46836, 52040, 57244, 58545, 62448, 71555, 78060, 85866, 93672, 104080, 114488, 117090, 124896, 128799, 143110, 156120, 171732, 187344, 208160, 214665, 228976, 234180, 257598, 286220, 312240, 343464, 374688, 429330, 457952, 468360, 515196, 572440, 624480, 643995, 686928, 858660, 936720, 1030392, 1144880, 1287990, 1373856, 1717320, 1873440, 2060784, 2289760, 2575980, 3434640, 4121568, 5151960, 6869280, 10303920, 20607840]

約数ペア:

[(1, 20607840), (2, 10303920), (3, 6869280), (4, 5151960), (5, 4121568), (6, 3434640), (8, 2575980), (9, 2289760), (10, 2060784), (11, 1873440), (12, 1717320), (15, 1373856), (16, 1287990), (18, 1144880), (20, 1030392), (22, 936720), (24, 858660), (30, 686928), (32, 643995), (33, 624480), (36, 572440), (40, 515196), (44, 468360), (45, 457952), (48, 429330), (55, 374688), (60, 343464), (66, 312240), (72, 286220), (80, 257598), (88, 234180), (90, 228976), (96, 214665), (99, 208160), (110, 187344), (120, 171732), (132, 156120), (144, 143110), (160, 128799), (165, 124896), (176, 117090), (180, 114488), (198, 104080), (220, 93672), (240, 85866), (264, 78060), (288, 71555), (330, 62448), (352, 58545), (360, 57244), (396, 52040), (440, 46836), (480, 42933), (495, 41632), (528, 39030), (660, 31224), (720, 28622), (792, 26020), (880, 23418), (990, 20816), (1056, 19515), (1301, 15840), (1320, 15612), (1440, 14311), (1584, 13010), (1760, 11709), (1980, 10408), (2602, 7920), (2640, 7806), (3168, 6505), (3903, 5280), (3960, 5204)]