28561806

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:135

約数の個数: 144

約数和(自身を含む): 80668224

約数和(自身を除く): 52106418

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 21, 26, 39, 42, 47, 49, 53, 63, 78, 91, 94, 98, 106, 117, 126, 141, 147, 159, 182, 234, 273, 282, 294, 318, 329, 371, 423, 441, 477, 546, 611, 637, 658, 689, 742, 819, 846, 882, 954, 987, 1113, 1222, 1274, 1378, 1638, 1833, 1911, 1974, 2067, 2226, 2303, 2491, 2597, 2961, 3339, 3666, 3822, 4134, 4277, 4606, 4823, 4982, 5194, 5499, 5733, 5922, 6201, 6678, 6909, 7473, 7791, 8554, 9646, 10998, 11466, 12402, 12831, 13818, 14469, 14946, 15582, 17437, 20727, 22419, 23373, 25662, 28938, 29939, 32383, 33761, 34874, 38493, 41454, 43407, 44838, 46746, 52311, 59878, 64766, 67522, 76986, 86814, 89817, 97149, 101283, 104622, 122059, 156933, 179634, 194298, 202566, 226681, 244118, 269451, 291447, 303849, 313866, 366177, 453362, 538902, 582894, 607698, 680043, 732354, 1098531, 1360086, 1586767, 2040129, 2197062, 3173534, 4080258, 4760301, 9520602, 14280903, 28561806]

約数ペア:

[(1, 28561806), (2, 14280903), (3, 9520602), (6, 4760301), (7, 4080258), (9, 3173534), (13, 2197062), (14, 2040129), (18, 1586767), (21, 1360086), (26, 1098531), (39, 732354), (42, 680043), (47, 607698), (49, 582894), (53, 538902), (63, 453362), (78, 366177), (91, 313866), (94, 303849), (98, 291447), (106, 269451), (117, 244118), (126, 226681), (141, 202566), (147, 194298), (159, 179634), (182, 156933), (234, 122059), (273, 104622), (282, 101283), (294, 97149), (318, 89817), (329, 86814), (371, 76986), (423, 67522), (441, 64766), (477, 59878), (546, 52311), (611, 46746), (637, 44838), (658, 43407), (689, 41454), (742, 38493), (819, 34874), (846, 33761), (882, 32383), (954, 29939), (987, 28938), (1113, 25662), (1222, 23373), (1274, 22419), (1378, 20727), (1638, 17437), (1833, 15582), (1911, 14946), (1974, 14469), (2067, 13818), (2226, 12831), (2303, 12402), (2491, 11466), (2597, 10998), (2961, 9646), (3339, 8554), (3666, 7791), (3822, 7473), (4134, 6909), (4277, 6678), (4606, 6201), (4823, 5922), (4982, 5733), (5194, 5499)]