81291294

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:159

約数の個数: 144

約数和(自身を含む): 218956608

約数和(自身を除く): 137665314

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 37, 42, 47, 49, 53, 63, 74, 94, 98, 106, 111, 126, 141, 147, 159, 222, 259, 282, 294, 318, 329, 333, 371, 423, 441, 477, 518, 658, 666, 742, 777, 846, 882, 954, 987, 1113, 1554, 1739, 1813, 1961, 1974, 2226, 2303, 2331, 2491, 2597, 2961, 3339, 3478, 3626, 3922, 4606, 4662, 4982, 5194, 5217, 5439, 5883, 5922, 6678, 6909, 7473, 7791, 10434, 10878, 11766, 12173, 13727, 13818, 14946, 15582, 15651, 16317, 17437, 17649, 20727, 22419, 23373, 24346, 27454, 31302, 32634, 34874, 35298, 36519, 41181, 41454, 44838, 46746, 52311, 73038, 82362, 85211, 92167, 96089, 104622, 109557, 122059, 123543, 156933, 170422, 184334, 192178, 219114, 244118, 247086, 255633, 276501, 288267, 313866, 366177, 511266, 553002, 576534, 645169, 732354, 766899, 829503, 864801, 1098531, 1290338, 1533798, 1659006, 1729602, 1935507, 2197062, 3871014, 4516183, 5806521, 9032366, 11613042, 13548549, 27097098, 40645647, 81291294]

約数ペア:

[(1, 81291294), (2, 40645647), (3, 27097098), (6, 13548549), (7, 11613042), (9, 9032366), (14, 5806521), (18, 4516183), (21, 3871014), (37, 2197062), (42, 1935507), (47, 1729602), (49, 1659006), (53, 1533798), (63, 1290338), (74, 1098531), (94, 864801), (98, 829503), (106, 766899), (111, 732354), (126, 645169), (141, 576534), (147, 553002), (159, 511266), (222, 366177), (259, 313866), (282, 288267), (294, 276501), (318, 255633), (329, 247086), (333, 244118), (371, 219114), (423, 192178), (441, 184334), (477, 170422), (518, 156933), (658, 123543), (666, 122059), (742, 109557), (777, 104622), (846, 96089), (882, 92167), (954, 85211), (987, 82362), (1113, 73038), (1554, 52311), (1739, 46746), (1813, 44838), (1961, 41454), (1974, 41181), (2226, 36519), (2303, 35298), (2331, 34874), (2491, 32634), (2597, 31302), (2961, 27454), (3339, 24346), (3478, 23373), (3626, 22419), (3922, 20727), (4606, 17649), (4662, 17437), (4982, 16317), (5194, 15651), (5217, 15582), (5439, 14946), (5883, 13818), (5922, 13727), (6678, 12173), (6909, 11766), (7473, 10878), (7791, 10434)]