261895788

素因数分解:

$2^2\times 3^3\times 7^2\times {\mathrm{11}}^2\times {\mathrm{409}}^1$

素因数の和:458

約数の個数: 216

約数和(自身を含む): 870298800

約数和(自身を除く): 608403012

約数列:

[1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 27, 28, 33, 36, 42, 44, 49, 54, 63, 66, 77, 84, 98, 99, 108, 121, 126, 132, 147, 154, 189, 196, 198, 231, 242, 252, 294, 297, 308, 363, 378, 396, 409, 441, 462, 484, 539, 588, 594, 693, 726, 756, 818, 847, 882, 924, 1078, 1089, 1188, 1227, 1323, 1386, 1452, 1617, 1636, 1694, 1764, 2079, 2156, 2178, 2454, 2541, 2646, 2772, 2863, 3234, 3267, 3388, 3681, 4158, 4356, 4499, 4851, 4908, 5082, 5292, 5726, 5929, 6468, 6534, 7362, 7623, 8316, 8589, 8998, 9702, 10164, 11043, 11452, 11858, 13068, 13497, 14553, 14724, 15246, 17178, 17787, 17996, 19404, 20041, 22086, 22869, 23716, 25767, 26994, 29106, 30492, 31493, 34356, 35574, 40082, 40491, 44172, 45738, 49489, 51534, 53361, 53988, 58212, 60123, 62986, 71148, 77301, 80164, 80982, 91476, 94479, 98978, 103068, 106722, 120246, 121473, 125972, 148467, 154602, 160083, 161964, 180369, 188958, 197956, 213444, 220451, 240492, 242946, 283437, 296934, 309204, 320166, 346423, 360738, 377916, 440902, 445401, 485892, 541107, 566874, 593868, 640332, 661353, 692846, 721476, 850311, 881804, 890802, 1039269, 1082214, 1133748, 1322706, 1336203, 1385692, 1700622, 1781604, 1984059, 2078538, 2164428, 2424961, 2645412, 2672406, 3117807, 3401244, 3968118, 4157076, 4849922, 5344812, 5952177, 6235614, 7274883, 7936236, 9353421, 9699844, 11904354, 12471228, 14549766, 18706842, 21824649, 23808708, 29099532, 37413684, 43649298, 65473947, 87298596, 130947894, 261895788]

約数ペア:

[(1, 261895788), (2, 130947894), (3, 87298596), (4, 65473947), (6, 43649298), (7, 37413684), (9, 29099532), (11, 23808708), (12, 21824649), (14, 18706842), (18, 14549766), (21, 12471228), (22, 11904354), (27, 9699844), (28, 9353421), (33, 7936236), (36, 7274883), (42, 6235614), (44, 5952177), (49, 5344812), (54, 4849922), (63, 4157076), (66, 3968118), (77, 3401244), (84, 3117807), (98, 2672406), (99, 2645412), (108, 2424961), (121, 2164428), (126, 2078538), (132, 1984059), (147, 1781604), (154, 1700622), (189, 1385692), (196, 1336203), (198, 1322706), (231, 1133748), (242, 1082214), (252, 1039269), (294, 890802), (297, 881804), (308, 850311), (363, 721476), (378, 692846), (396, 661353), (409, 640332), (441, 593868), (462, 566874), (484, 541107), (539, 485892), (588, 445401), (594, 440902), (693, 377916), (726, 360738), (756, 346423), (818, 320166), (847, 309204), (882, 296934), (924, 283437), (1078, 242946), (1089, 240492), (1188, 220451), (1227, 213444), (1323, 197956), (1386, 188958), (1452, 180369), (1617, 161964), (1636, 160083), (1694, 154602), (1764, 148467), (2079, 125972), (2156, 121473), (2178, 120246), (2454, 106722), (2541, 103068), (2646, 98978), (2772, 94479), (2863, 91476), (3234, 80982), (3267, 80164), (3388, 77301), (3681, 71148), (4158, 62986), (4356, 60123), (4499, 58212), (4851, 53988), (4908, 53361), (5082, 51534), (5292, 49489), (5726, 45738), (5929, 44172), (6468, 40491), (6534, 40082), (7362, 35574), (7623, 34356), (8316, 31493), (8589, 30492), (8998, 29106), (9702, 26994), (10164, 25767), (11043, 23716), (11452, 22869), (11858, 22086), (13068, 20041), (13497, 19404), (14553, 17996), (14724, 17787), (15246, 17178)]