261123156

素因数分解:

$2^2\times 3^3\times 7^4\times {\mathrm{19}}^1\times {\mathrm{53}}^1$

素因数の和:113

約数の個数: 240

約数和(自身を含む): 847022400

約数和(自身を除く): 585899244

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 19, 21, 27, 28, 36, 38, 42, 49, 53, 54, 57, 63, 76, 84, 98, 106, 108, 114, 126, 133, 147, 159, 171, 189, 196, 212, 228, 252, 266, 294, 318, 342, 343, 371, 378, 399, 441, 477, 513, 532, 588, 636, 684, 686, 742, 756, 798, 882, 931, 954, 1007, 1026, 1029, 1113, 1197, 1323, 1372, 1431, 1484, 1596, 1764, 1862, 1908, 2014, 2052, 2058, 2226, 2394, 2401, 2597, 2646, 2793, 2862, 3021, 3087, 3339, 3591, 3724, 4028, 4116, 4452, 4788, 4802, 5194, 5292, 5586, 5724, 6042, 6174, 6517, 6678, 7049, 7182, 7203, 7791, 8379, 9063, 9261, 9604, 10017, 10388, 11172, 12084, 12348, 13034, 13356, 14098, 14364, 14406, 15582, 16758, 18126, 18179, 18522, 19551, 20034, 21147, 21609, 23373, 25137, 26068, 27189, 28196, 28812, 31164, 33516, 36252, 36358, 37044, 39102, 40068, 42294, 43218, 45619, 46746, 49343, 50274, 54378, 54537, 58653, 63441, 64827, 70119, 72716, 78204, 84588, 86436, 91238, 93492, 98686, 100548, 108756, 109074, 117306, 126882, 127253, 129654, 136857, 140238, 148029, 163611, 175959, 182476, 190323, 197372, 218148, 234612, 253764, 254506, 259308, 273714, 280476, 296058, 327222, 345401, 351918, 380646, 381759, 410571, 444087, 490833, 509012, 547428, 592116, 654444, 690802, 703836, 761292, 763518, 821142, 888174, 981666, 1036203, 1145277, 1231713, 1332261, 1381604, 1527036, 1642284, 1776348, 1963332, 2072406, 2290554, 2417807, 2463426, 2664522, 3108609, 3435831, 4144812, 4581108, 4835614, 4926852, 5329044, 6217218, 6871662, 7253421, 9325827, 9671228, 12434436, 13743324, 14506842, 18651654, 21760263, 29013684, 37303308, 43520526, 65280789, 87041052, 130561578, 261123156]

約数ペア:

[(1, 261123156), (2, 130561578), (3, 87041052), (4, 65280789), (6, 43520526), (7, 37303308), (9, 29013684), (12, 21760263), (14, 18651654), (18, 14506842), (19, 13743324), (21, 12434436), (27, 9671228), (28, 9325827), (36, 7253421), (38, 6871662), (42, 6217218), (49, 5329044), (53, 4926852), (54, 4835614), (57, 4581108), (63, 4144812), (76, 3435831), (84, 3108609), (98, 2664522), (106, 2463426), (108, 2417807), (114, 2290554), (126, 2072406), (133, 1963332), (147, 1776348), (159, 1642284), (171, 1527036), (189, 1381604), (196, 1332261), (212, 1231713), (228, 1145277), (252, 1036203), (266, 981666), (294, 888174), (318, 821142), (342, 763518), (343, 761292), (371, 703836), (378, 690802), (399, 654444), (441, 592116), (477, 547428), (513, 509012), (532, 490833), (588, 444087), (636, 410571), (684, 381759), (686, 380646), (742, 351918), (756, 345401), (798, 327222), (882, 296058), (931, 280476), (954, 273714), (1007, 259308), (1026, 254506), (1029, 253764), (1113, 234612), (1197, 218148), (1323, 197372), (1372, 190323), (1431, 182476), (1484, 175959), (1596, 163611), (1764, 148029), (1862, 140238), (1908, 136857), (2014, 129654), (2052, 127253), (2058, 126882), (2226, 117306), (2394, 109074), (2401, 108756), (2597, 100548), (2646, 98686), (2793, 93492), (2862, 91238), (3021, 86436), (3087, 84588), (3339, 78204), (3591, 72716), (3724, 70119), (4028, 64827), (4116, 63441), (4452, 58653), (4788, 54537), (4802, 54378), (5194, 50274), (5292, 49343), (5586, 46746), (5724, 45619), (6042, 43218), (6174, 42294), (6517, 40068), (6678, 39102), (7049, 37044), (7182, 36358), (7203, 36252), (7791, 33516), (8379, 31164), (9063, 28812), (9261, 28196), (9604, 27189), (10017, 26068), (10388, 25137), (11172, 23373), (12084, 21609), (12348, 21147), (13034, 20034), (13356, 19551), (14098, 18522), (14364, 18179), (14406, 18126), (15582, 16758)]