205405956

素因数分解:

$2^2\times 3^6\times 7^1\times {\mathrm{29}}^1\times {\mathrm{347}}^1$

素因数の和:405

約数の個数: 168

約数和(自身を含む): 639011520

約数和(自身を除く): 433605564

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 29, 36, 42, 54, 58, 63, 81, 84, 87, 108, 116, 126, 162, 174, 189, 203, 243, 252, 261, 324, 347, 348, 378, 406, 486, 522, 567, 609, 694, 729, 756, 783, 812, 972, 1041, 1044, 1134, 1218, 1388, 1458, 1566, 1701, 1827, 2082, 2268, 2349, 2429, 2436, 2916, 3123, 3132, 3402, 3654, 4164, 4698, 4858, 5103, 5481, 6246, 6804, 7047, 7287, 7308, 9369, 9396, 9716, 10063, 10206, 10962, 12492, 14094, 14574, 16443, 18738, 20126, 20412, 21141, 21861, 21924, 28107, 28188, 29148, 30189, 32886, 37476, 40252, 42282, 43722, 49329, 56214, 60378, 65583, 65772, 70441, 84321, 84564, 87444, 90567, 98658, 112428, 120756, 131166, 140882, 147987, 168642, 181134, 196749, 197316, 211323, 252963, 262332, 271701, 281764, 295974, 337284, 362268, 393498, 422646, 505926, 543402, 590247, 591948, 633969, 786996, 815103, 845292, 1011852, 1086804, 1180494, 1267938, 1630206, 1770741, 1901907, 2360988, 2445309, 2535876, 3260412, 3541482, 3803814, 4890618, 5705721, 7082964, 7335927, 7607628, 9781236, 11411442, 14671854, 17117163, 22822884, 29343708, 34234326, 51351489, 68468652, 102702978, 205405956]

約数ペア:

[(1, 205405956), (2, 102702978), (3, 68468652), (4, 51351489), (6, 34234326), (7, 29343708), (9, 22822884), (12, 17117163), (14, 14671854), (18, 11411442), (21, 9781236), (27, 7607628), (28, 7335927), (29, 7082964), (36, 5705721), (42, 4890618), (54, 3803814), (58, 3541482), (63, 3260412), (81, 2535876), (84, 2445309), (87, 2360988), (108, 1901907), (116, 1770741), (126, 1630206), (162, 1267938), (174, 1180494), (189, 1086804), (203, 1011852), (243, 845292), (252, 815103), (261, 786996), (324, 633969), (347, 591948), (348, 590247), (378, 543402), (406, 505926), (486, 422646), (522, 393498), (567, 362268), (609, 337284), (694, 295974), (729, 281764), (756, 271701), (783, 262332), (812, 252963), (972, 211323), (1041, 197316), (1044, 196749), (1134, 181134), (1218, 168642), (1388, 147987), (1458, 140882), (1566, 131166), (1701, 120756), (1827, 112428), (2082, 98658), (2268, 90567), (2349, 87444), (2429, 84564), (2436, 84321), (2916, 70441), (3123, 65772), (3132, 65583), (3402, 60378), (3654, 56214), (4164, 49329), (4698, 43722), (4858, 42282), (5103, 40252), (5481, 37476), (6246, 32886), (6804, 30189), (7047, 29148), (7287, 28188), (7308, 28107), (9369, 21924), (9396, 21861), (9716, 21141), (10063, 20412), (10206, 20126), (10962, 18738), (12492, 16443), (14094, 14574)]