281131884

素因数分解:

$2^2\times 3^4\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:210

約数の個数: 180

約数和(自身を含む): 827308944

約数和(自身を除く): 546177060

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 27, 33, 36, 44, 54, 66, 71, 81, 99, 101, 108, 121, 132, 142, 162, 198, 202, 213, 242, 284, 297, 303, 324, 363, 396, 404, 426, 484, 594, 606, 639, 726, 781, 852, 891, 909, 1089, 1111, 1188, 1212, 1278, 1452, 1562, 1782, 1818, 1917, 2178, 2222, 2343, 2556, 2727, 3124, 3267, 3333, 3564, 3636, 3834, 4356, 4444, 4686, 5454, 5751, 6534, 6666, 7029, 7171, 7668, 8181, 8591, 9372, 9801, 9999, 10908, 11502, 12221, 13068, 13332, 14058, 14342, 16362, 17182, 19602, 19998, 21087, 21513, 23004, 24442, 25773, 28116, 28684, 29997, 32724, 34364, 36663, 39204, 39996, 42174, 43026, 48884, 51546, 59994, 63261, 64539, 73326, 77319, 78881, 84348, 86052, 89991, 103092, 109989, 119988, 126522, 129078, 146652, 154638, 157762, 179982, 193617, 219978, 231957, 236643, 253044, 258156, 309276, 315524, 329967, 359964, 387234, 439956, 463914, 473286, 580851, 659934, 695871, 709929, 774468, 867691, 927828, 946572, 989901, 1161702, 1319868, 1391742, 1419858, 1735382, 1979802, 2129787, 2323404, 2603073, 2783484, 2839716, 3470764, 3959604, 4259574, 5206146, 6389361, 7809219, 8519148, 10412292, 12778722, 15618438, 23427657, 25557444, 31236876, 46855314, 70282971, 93710628, 140565942, 281131884]

約数ペア:

[(1, 281131884), (2, 140565942), (3, 93710628), (4, 70282971), (6, 46855314), (9, 31236876), (11, 25557444), (12, 23427657), (18, 15618438), (22, 12778722), (27, 10412292), (33, 8519148), (36, 7809219), (44, 6389361), (54, 5206146), (66, 4259574), (71, 3959604), (81, 3470764), (99, 2839716), (101, 2783484), (108, 2603073), (121, 2323404), (132, 2129787), (142, 1979802), (162, 1735382), (198, 1419858), (202, 1391742), (213, 1319868), (242, 1161702), (284, 989901), (297, 946572), (303, 927828), (324, 867691), (363, 774468), (396, 709929), (404, 695871), (426, 659934), (484, 580851), (594, 473286), (606, 463914), (639, 439956), (726, 387234), (781, 359964), (852, 329967), (891, 315524), (909, 309276), (1089, 258156), (1111, 253044), (1188, 236643), (1212, 231957), (1278, 219978), (1452, 193617), (1562, 179982), (1782, 157762), (1818, 154638), (1917, 146652), (2178, 129078), (2222, 126522), (2343, 119988), (2556, 109989), (2727, 103092), (3124, 89991), (3267, 86052), (3333, 84348), (3564, 78881), (3636, 77319), (3834, 73326), (4356, 64539), (4444, 63261), (4686, 59994), (5454, 51546), (5751, 48884), (6534, 43026), (6666, 42174), (7029, 39996), (7171, 39204), (7668, 36663), (8181, 34364), (8591, 32724), (9372, 29997), (9801, 28684), (9999, 28116), (10908, 25773), (11502, 24442), (12221, 23004), (13068, 21513), (13332, 21087), (14058, 19998), (14342, 19602), (16362, 17182)]