638648556

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1$

素因数の和:173

約数の個数: 288

約数和(自身を含む): 2005597440

約数和(自身を除く): 1366948884

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 29, 39, 42, 43, 49, 52, 58, 67, 78, 84, 86, 87, 91, 98, 116, 129, 134, 147, 156, 172, 174, 182, 196, 201, 203, 258, 268, 273, 294, 301, 348, 364, 377, 402, 406, 469, 516, 546, 559, 588, 602, 609, 637, 754, 804, 812, 871, 903, 938, 1092, 1118, 1131, 1204, 1218, 1247, 1274, 1407, 1421, 1508, 1677, 1742, 1806, 1876, 1911, 1943, 2107, 2236, 2262, 2436, 2494, 2548, 2613, 2639, 2814, 2842, 2881, 3283, 3354, 3484, 3612, 3741, 3822, 3886, 3913, 4214, 4263, 4524, 4988, 5226, 5278, 5628, 5684, 5762, 5829, 6097, 6321, 6566, 6708, 7482, 7644, 7772, 7826, 7917, 8428, 8526, 8643, 8729, 9849, 10452, 10556, 11524, 11658, 11739, 12194, 12642, 13132, 13601, 14964, 15652, 15834, 16211, 17052, 17286, 17458, 18291, 18473, 19698, 20167, 23316, 23478, 24388, 25259, 25284, 26187, 27202, 27391, 31668, 32422, 34572, 34916, 36582, 36946, 37453, 39396, 40334, 40803, 42679, 46956, 48633, 50518, 52374, 54404, 54782, 55419, 60501, 61103, 64844, 73164, 73892, 74906, 75777, 80668, 81606, 82173, 83549, 85358, 95207, 97266, 101036, 104748, 109564, 110838, 112359, 113477, 121002, 122206, 128037, 141169, 149812, 151554, 163212, 164346, 167098, 170716, 176813, 183309, 190414, 194532, 221676, 224718, 226954, 242004, 244412, 250647, 256074, 262171, 282338, 285621, 303108, 328692, 334196, 340431, 353626, 366618, 380828, 423507, 449436, 453908, 501294, 512148, 524342, 530439, 564676, 571242, 584843, 680862, 707252, 733236, 786513, 794339, 847014, 1002588, 1048684, 1060878, 1086137, 1142484, 1169686, 1237691, 1361724, 1573026, 1588678, 1694028, 1754529, 1835197, 2121756, 2172274, 2339372, 2383017, 2475382, 3146052, 3177356, 3258411, 3509058, 3670394, 3713073, 4093901, 4344548, 4766034, 4950764, 5505591, 6516822, 7018116, 7340788, 7426146, 7602959, 8187802, 9532068, 11011182, 12281703, 13033644, 14852292, 15205918, 16375604, 22022364, 22808877, 24563406, 30411836, 45617754, 49126812, 53220713, 91235508, 106441426, 159662139, 212882852, 319324278, 638648556]

約数ペア:

[(1, 638648556), (2, 319324278), (3, 212882852), (4, 159662139), (6, 106441426), (7, 91235508), (12, 53220713), (13, 49126812), (14, 45617754), (21, 30411836), (26, 24563406), (28, 22808877), (29, 22022364), (39, 16375604), (42, 15205918), (43, 14852292), (49, 13033644), (52, 12281703), (58, 11011182), (67, 9532068), (78, 8187802), (84, 7602959), (86, 7426146), (87, 7340788), (91, 7018116), (98, 6516822), (116, 5505591), (129, 4950764), (134, 4766034), (147, 4344548), (156, 4093901), (172, 3713073), (174, 3670394), (182, 3509058), (196, 3258411), (201, 3177356), (203, 3146052), (258, 2475382), (268, 2383017), (273, 2339372), (294, 2172274), (301, 2121756), (348, 1835197), (364, 1754529), (377, 1694028), (402, 1588678), (406, 1573026), (469, 1361724), (516, 1237691), (546, 1169686), (559, 1142484), (588, 1086137), (602, 1060878), (609, 1048684), (637, 1002588), (754, 847014), (804, 794339), (812, 786513), (871, 733236), (903, 707252), (938, 680862), (1092, 584843), (1118, 571242), (1131, 564676), (1204, 530439), (1218, 524342), (1247, 512148), (1274, 501294), (1407, 453908), (1421, 449436), (1508, 423507), (1677, 380828), (1742, 366618), (1806, 353626), (1876, 340431), (1911, 334196), (1943, 328692), (2107, 303108), (2236, 285621), (2262, 282338), (2436, 262171), (2494, 256074), (2548, 250647), (2613, 244412), (2639, 242004), (2814, 226954), (2842, 224718), (2881, 221676), (3283, 194532), (3354, 190414), (3484, 183309), (3612, 176813), (3741, 170716), (3822, 167098), (3886, 164346), (3913, 163212), (4214, 151554), (4263, 149812), (4524, 141169), (4988, 128037), (5226, 122206), (5278, 121002), (5628, 113477), (5684, 112359), (5762, 110838), (5829, 109564), (6097, 104748), (6321, 101036), (6566, 97266), (6708, 95207), (7482, 85358), (7644, 83549), (7772, 82173), (7826, 81606), (7917, 80668), (8428, 75777), (8526, 74906), (8643, 73892), (8729, 73164), (9849, 64844), (10452, 61103), (10556, 60501), (11524, 55419), (11658, 54782), (11739, 54404), (12194, 52374), (12642, 50518), (13132, 48633), (13601, 46956), (14964, 42679), (15652, 40803), (15834, 40334), (16211, 39396), (17052, 37453), (17286, 36946), (17458, 36582), (18291, 34916), (18473, 34572), (19698, 32422), (20167, 31668), (23316, 27391), (23478, 27202), (24388, 26187), (25259, 25284)]