278621280

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{211}}^1$

素因数の和:370

約数の個数: 288

約数和(自身を含む): 1100107008

約数和(自身を除く): 821485728

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 131, 140, 144, 160, 168, 180, 210, 211, 224, 240, 252, 262, 280, 288, 315, 336, 360, 393, 420, 422, 480, 504, 524, 560, 630, 633, 655, 672, 720, 786, 840, 844, 917, 1008, 1048, 1055, 1120, 1179, 1260, 1266, 1310, 1440, 1477, 1572, 1680, 1688, 1834, 1899, 1965, 2016, 2096, 2110, 2358, 2520, 2532, 2620, 2751, 2954, 3144, 3165, 3360, 3376, 3668, 3798, 3930, 4192, 4220, 4431, 4585, 4716, 5040, 5064, 5240, 5502, 5895, 5908, 6288, 6330, 6752, 7336, 7385, 7596, 7860, 8253, 8440, 8862, 9170, 9432, 9495, 10080, 10128, 10480, 11004, 11790, 11816, 12576, 12660, 13293, 13755, 14672, 14770, 15192, 15720, 16506, 16880, 17724, 18340, 18864, 18990, 20256, 20960, 22008, 22155, 23580, 23632, 25320, 26586, 27510, 27641, 29344, 29540, 30384, 31440, 33012, 33760, 35448, 36680, 37728, 37980, 41265, 44016, 44310, 47160, 47264, 50640, 53172, 55020, 55282, 59080, 60768, 62880, 66024, 66465, 70896, 73360, 75960, 82530, 82923, 88032, 88620, 94320, 101280, 106344, 110040, 110564, 118160, 132048, 132930, 138205, 141792, 146720, 151920, 165060, 165846, 177240, 188640, 193487, 212688, 220080, 221128, 236320, 248769, 264096, 265860, 276410, 303840, 330120, 331692, 354480, 386974, 414615, 425376, 440160, 442256, 497538, 531720, 552820, 580461, 660240, 663384, 708960, 773948, 829230, 884512, 967435, 995076, 1063440, 1105640, 1160922, 1243845, 1320480, 1326768, 1547896, 1658460, 1741383, 1934870, 1990152, 2126880, 2211280, 2321844, 2487690, 2653536, 2902305, 3095792, 3316920, 3482766, 3869740, 3980304, 4422560, 4643688, 4975380, 5804610, 6191584, 6633840, 6965532, 7739480, 7960608, 8706915, 9287376, 9950760, 11609220, 13267680, 13931064, 15478960, 17413830, 18574752, 19901520, 23218440, 27862128, 30957920, 34827660, 39803040, 46436880, 55724256, 69655320, 92873760, 139310640, 278621280]

約数ペア:

[(1, 278621280), (2, 139310640), (3, 92873760), (4, 69655320), (5, 55724256), (6, 46436880), (7, 39803040), (8, 34827660), (9, 30957920), (10, 27862128), (12, 23218440), (14, 19901520), (15, 18574752), (16, 17413830), (18, 15478960), (20, 13931064), (21, 13267680), (24, 11609220), (28, 9950760), (30, 9287376), (32, 8706915), (35, 7960608), (36, 7739480), (40, 6965532), (42, 6633840), (45, 6191584), (48, 5804610), (56, 4975380), (60, 4643688), (63, 4422560), (70, 3980304), (72, 3869740), (80, 3482766), (84, 3316920), (90, 3095792), (96, 2902305), (105, 2653536), (112, 2487690), (120, 2321844), (126, 2211280), (131, 2126880), (140, 1990152), (144, 1934870), (160, 1741383), (168, 1658460), (180, 1547896), (210, 1326768), (211, 1320480), (224, 1243845), (240, 1160922), (252, 1105640), (262, 1063440), (280, 995076), (288, 967435), (315, 884512), (336, 829230), (360, 773948), (393, 708960), (420, 663384), (422, 660240), (480, 580461), (504, 552820), (524, 531720), (560, 497538), (630, 442256), (633, 440160), (655, 425376), (672, 414615), (720, 386974), (786, 354480), (840, 331692), (844, 330120), (917, 303840), (1008, 276410), (1048, 265860), (1055, 264096), (1120, 248769), (1179, 236320), (1260, 221128), (1266, 220080), (1310, 212688), (1440, 193487), (1477, 188640), (1572, 177240), (1680, 165846), (1688, 165060), (1834, 151920), (1899, 146720), (1965, 141792), (2016, 138205), (2096, 132930), (2110, 132048), (2358, 118160), (2520, 110564), (2532, 110040), (2620, 106344), (2751, 101280), (2954, 94320), (3144, 88620), (3165, 88032), (3360, 82923), (3376, 82530), (3668, 75960), (3798, 73360), (3930, 70896), (4192, 66465), (4220, 66024), (4431, 62880), (4585, 60768), (4716, 59080), (5040, 55282), (5064, 55020), (5240, 53172), (5502, 50640), (5895, 47264), (5908, 47160), (6288, 44310), (6330, 44016), (6752, 41265), (7336, 37980), (7385, 37728), (7596, 36680), (7860, 35448), (8253, 33760), (8440, 33012), (8862, 31440), (9170, 30384), (9432, 29540), (9495, 29344), (10080, 27641), (10128, 27510), (10480, 26586), (11004, 25320), (11790, 23632), (11816, 23580), (12576, 22155), (12660, 22008), (13293, 20960), (13755, 20256), (14672, 18990), (14770, 18864), (15192, 18340), (15720, 17724), (16506, 16880)]