20076320

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1$

素因数の和:115

約数の個数: 144

約数和(自身を含む): 56105784

約数和(自身を除く): 36029464

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 32, 34, 40, 44, 55, 61, 68, 80, 85, 88, 110, 121, 122, 136, 160, 170, 176, 187, 220, 242, 244, 272, 305, 340, 352, 374, 440, 484, 488, 544, 605, 610, 671, 680, 748, 880, 935, 968, 976, 1037, 1210, 1220, 1342, 1360, 1496, 1760, 1870, 1936, 1952, 2057, 2074, 2420, 2440, 2684, 2720, 2992, 3355, 3740, 3872, 4114, 4148, 4840, 4880, 5185, 5368, 5984, 6710, 7381, 7480, 8228, 8296, 9680, 9760, 10285, 10370, 10736, 11407, 13420, 14762, 14960, 16456, 16592, 19360, 20570, 20740, 21472, 22814, 26840, 29524, 29920, 32912, 33184, 36905, 41140, 41480, 45628, 53680, 57035, 59048, 65824, 73810, 82280, 82960, 91256, 107360, 114070, 118096, 125477, 147620, 164560, 165920, 182512, 228140, 236192, 250954, 295240, 329120, 365024, 456280, 501908, 590480, 627385, 912560, 1003816, 1180960, 1254770, 1825120, 2007632, 2509540, 4015264, 5019080, 10038160, 20076320]

約数ペア:

[(1, 20076320), (2, 10038160), (4, 5019080), (5, 4015264), (8, 2509540), (10, 2007632), (11, 1825120), (16, 1254770), (17, 1180960), (20, 1003816), (22, 912560), (32, 627385), (34, 590480), (40, 501908), (44, 456280), (55, 365024), (61, 329120), (68, 295240), (80, 250954), (85, 236192), (88, 228140), (110, 182512), (121, 165920), (122, 164560), (136, 147620), (160, 125477), (170, 118096), (176, 114070), (187, 107360), (220, 91256), (242, 82960), (244, 82280), (272, 73810), (305, 65824), (340, 59048), (352, 57035), (374, 53680), (440, 45628), (484, 41480), (488, 41140), (544, 36905), (605, 33184), (610, 32912), (671, 29920), (680, 29524), (748, 26840), (880, 22814), (935, 21472), (968, 20740), (976, 20570), (1037, 19360), (1210, 16592), (1220, 16456), (1342, 14960), (1360, 14762), (1496, 13420), (1760, 11407), (1870, 10736), (1936, 10370), (1952, 10285), (2057, 9760), (2074, 9680), (2420, 8296), (2440, 8228), (2684, 7480), (2720, 7381), (2992, 6710), (3355, 5984), (3740, 5368), (3872, 5185), (4114, 4880), (4148, 4840)]