20702880

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1307}}^1$

素因数の和:1339

約数の個数: 144

約数和(自身を含む): 77130144

約数和(自身を除く): 56427264

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, 1307, 1320, 1440, 1584, 1760, 1980, 2614, 2640, 3168, 3921, 3960, 5228, 5280, 6535, 7842, 7920, 10456, 11763, 13070, 14377, 15684, 15840, 19605, 20912, 23526, 26140, 28754, 31368, 39210, 41824, 43131, 47052, 52280, 57508, 58815, 62736, 71885, 78420, 86262, 94104, 104560, 115016, 117630, 125472, 129393, 143770, 156840, 172524, 188208, 209120, 215655, 230032, 235260, 258786, 287540, 313680, 345048, 376416, 431310, 460064, 470520, 517572, 575080, 627360, 646965, 690096, 862620, 941040, 1035144, 1150160, 1293930, 1380192, 1725240, 1882080, 2070288, 2300320, 2587860, 3450480, 4140576, 5175720, 6900960, 10351440, 20702880]

約数ペア:

[(1, 20702880), (2, 10351440), (3, 6900960), (4, 5175720), (5, 4140576), (6, 3450480), (8, 2587860), (9, 2300320), (10, 2070288), (11, 1882080), (12, 1725240), (15, 1380192), (16, 1293930), (18, 1150160), (20, 1035144), (22, 941040), (24, 862620), (30, 690096), (32, 646965), (33, 627360), (36, 575080), (40, 517572), (44, 470520), (45, 460064), (48, 431310), (55, 376416), (60, 345048), (66, 313680), (72, 287540), (80, 258786), (88, 235260), (90, 230032), (96, 215655), (99, 209120), (110, 188208), (120, 172524), (132, 156840), (144, 143770), (160, 129393), (165, 125472), (176, 117630), (180, 115016), (198, 104560), (220, 94104), (240, 86262), (264, 78420), (288, 71885), (330, 62736), (352, 58815), (360, 57508), (396, 52280), (440, 47052), (480, 43131), (495, 41824), (528, 39210), (660, 31368), (720, 28754), (792, 26140), (880, 23526), (990, 20912), (1056, 19605), (1307, 15840), (1320, 15684), (1440, 14377), (1584, 13070), (1760, 11763), (1980, 10456), (2614, 7920), (2640, 7842), (3168, 6535), (3921, 5280), (3960, 5228)]