20790787563

素因数分解:

$3^3\times 7^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:272

約数の個数: 256

約数和(自身を含む): 41664000000

約数和(自身を除く): 20873212437

約数列:

[1, 3, 7, 9, 13, 19, 21, 27, 39, 49, 57, 61, 63, 91, 117, 133, 147, 149, 171, 183, 189, 247, 273, 343, 351, 399, 427, 441, 447, 513, 549, 637, 741, 793, 819, 931, 1029, 1043, 1159, 1197, 1281, 1323, 1341, 1647, 1729, 1911, 1937, 2223, 2379, 2457, 2793, 2831, 2989, 3087, 3129, 3477, 3591, 3843, 4023, 4459, 5187, 5551, 5733, 5811, 6517, 6669, 7137, 7301, 8113, 8379, 8493, 8967, 9089, 9261, 9387, 10431, 11529, 12103, 13377, 13559, 15067, 15561, 16653, 17199, 17433, 19551, 19817, 20923, 21411, 21903, 24339, 25137, 25479, 26901, 27267, 28161, 31293, 36309, 36803, 38857, 40131, 40677, 45201, 46683, 49959, 51107, 52299, 56791, 58653, 59451, 62769, 63623, 65709, 73017, 76437, 80703, 81801, 84721, 94913, 105469, 108927, 110409, 116571, 118157, 120393, 122031, 135603, 138719, 149877, 153321, 170373, 172691, 175959, 178353, 188307, 190869, 197127, 219051, 245403, 254163, 257621, 271999, 284739, 316407, 326781, 331227, 349713, 354471, 366093, 397537, 406809, 416157, 445361, 459963, 511119, 518073, 535059, 564921, 572607, 664391, 738283, 762489, 772863, 815997, 827099, 854217, 949221, 971033, 993681, 1049139, 1063413, 1192611, 1208837, 1248471, 1336083, 1379889, 1533357, 1554219, 1717821, 1803347, 1993173, 2214849, 2244983, 2287467, 2318589, 2447991, 2481297, 2562651, 2847663, 2913099, 3117527, 3190239, 3577833, 3626511, 3745413, 4008249, 4662657, 5167981, 5410041, 5789693, 5979519, 6644547, 6734949, 6955767, 7343973, 7443891, 8461859, 8739297, 9352581, 10733499, 10879533, 12024747, 12623429, 15503943, 15714881, 16230123, 17369079, 17938557, 19933641, 20204847, 22331673, 25385577, 26217891, 28057743, 32638599, 37870287, 40527851, 46511829, 47144643, 48690369, 52107237, 59233013, 60614541, 76156731, 84173229, 110004167, 113610861, 121583553, 139535487, 141433929, 156321711, 177699039, 228470193, 330012501, 340832583, 364750659, 424301787, 533097117, 770029169, 990037503, 1094251977, 1599291351, 2310087507, 2970112509, 6930262521, 20790787563]

約数ペア:

[(1, 20790787563), (3, 6930262521), (7, 2970112509), (9, 2310087507), (13, 1599291351), (19, 1094251977), (21, 990037503), (27, 770029169), (39, 533097117), (49, 424301787), (57, 364750659), (61, 340832583), (63, 330012501), (91, 228470193), (117, 177699039), (133, 156321711), (147, 141433929), (149, 139535487), (171, 121583553), (183, 113610861), (189, 110004167), (247, 84173229), (273, 76156731), (343, 60614541), (351, 59233013), (399, 52107237), (427, 48690369), (441, 47144643), (447, 46511829), (513, 40527851), (549, 37870287), (637, 32638599), (741, 28057743), (793, 26217891), (819, 25385577), (931, 22331673), (1029, 20204847), (1043, 19933641), (1159, 17938557), (1197, 17369079), (1281, 16230123), (1323, 15714881), (1341, 15503943), (1647, 12623429), (1729, 12024747), (1911, 10879533), (1937, 10733499), (2223, 9352581), (2379, 8739297), (2457, 8461859), (2793, 7443891), (2831, 7343973), (2989, 6955767), (3087, 6734949), (3129, 6644547), (3477, 5979519), (3591, 5789693), (3843, 5410041), (4023, 5167981), (4459, 4662657), (5187, 4008249), (5551, 3745413), (5733, 3626511), (5811, 3577833), (6517, 3190239), (6669, 3117527), (7137, 2913099), (7301, 2847663), (8113, 2562651), (8379, 2481297), (8493, 2447991), (8967, 2318589), (9089, 2287467), (9261, 2244983), (9387, 2214849), (10431, 1993173), (11529, 1803347), (12103, 1717821), (13377, 1554219), (13559, 1533357), (15067, 1379889), (15561, 1336083), (16653, 1248471), (17199, 1208837), (17433, 1192611), (19551, 1063413), (19817, 1049139), (20923, 993681), (21411, 971033), (21903, 949221), (24339, 854217), (25137, 827099), (25479, 815997), (26901, 772863), (27267, 762489), (28161, 738283), (31293, 664391), (36309, 572607), (36803, 564921), (38857, 535059), (40131, 518073), (40677, 511119), (45201, 459963), (46683, 445361), (49959, 416157), (51107, 406809), (52299, 397537), (56791, 366093), (58653, 354471), (59451, 349713), (62769, 331227), (63623, 326781), (65709, 316407), (73017, 284739), (76437, 271999), (80703, 257621), (81801, 254163), (84721, 245403), (94913, 219051), (105469, 197127), (108927, 190869), (110409, 188307), (116571, 178353), (118157, 175959), (120393, 172691), (122031, 170373), (135603, 153321), (138719, 149877)]