638620416

素因数分解:

$2^8\times 3^3\times 7^1\times {\mathrm{67}}^1\times {\mathrm{197}}^1$

素因数の和:296

約数の個数: 288

約数和(自身を含む): 2201633280

約数和(自身を除く): 1563012864

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 32, 36, 42, 48, 54, 56, 63, 64, 67, 72, 84, 96, 108, 112, 126, 128, 134, 144, 168, 189, 192, 197, 201, 216, 224, 252, 256, 268, 288, 336, 378, 384, 394, 402, 432, 448, 469, 504, 536, 576, 591, 603, 672, 756, 768, 788, 804, 864, 896, 938, 1008, 1072, 1152, 1182, 1206, 1344, 1379, 1407, 1512, 1576, 1608, 1728, 1773, 1792, 1809, 1876, 2016, 2144, 2304, 2364, 2412, 2688, 2758, 2814, 3024, 3152, 3216, 3456, 3546, 3618, 3752, 4032, 4137, 4221, 4288, 4728, 4824, 5319, 5376, 5516, 5628, 6048, 6304, 6432, 6912, 7092, 7236, 7504, 8064, 8274, 8442, 8576, 9456, 9648, 10638, 11032, 11256, 12096, 12411, 12608, 12663, 12864, 13199, 14184, 14472, 15008, 16128, 16548, 16884, 17152, 18912, 19296, 21276, 22064, 22512, 24192, 24822, 25216, 25326, 25728, 26398, 28368, 28944, 30016, 33096, 33768, 37233, 37824, 38592, 39597, 42552, 44128, 45024, 48384, 49644, 50432, 50652, 51456, 52796, 56736, 57888, 60032, 66192, 67536, 74466, 75648, 77184, 79194, 85104, 88256, 90048, 92393, 99288, 101304, 105592, 113472, 115776, 118791, 120064, 132384, 135072, 148932, 151296, 154368, 158388, 170208, 176512, 180096, 184786, 198576, 202608, 211184, 226944, 231552, 237582, 264768, 270144, 277179, 297864, 316776, 340416, 353024, 356373, 360192, 369572, 397152, 405216, 422368, 453888, 463104, 475164, 529536, 540288, 554358, 595728, 633552, 680832, 712746, 739144, 794304, 810432, 831537, 844736, 950328, 1059072, 1080576, 1108716, 1191456, 1267104, 1361664, 1425492, 1478288, 1588608, 1620864, 1663074, 1689472, 1900656, 2217432, 2382912, 2494611, 2534208, 2850984, 2956576, 3177216, 3241728, 3326148, 3378944, 3801312, 4434864, 4765824, 4989222, 5068416, 5701968, 5913152, 6652296, 7602624, 8869728, 9531648, 9978444, 10136832, 11403936, 11826304, 13304592, 15205248, 17739456, 19956888, 22807872, 23652608, 26609184, 30410496, 35478912, 39913776, 45615744, 53218368, 70957824, 79827552, 91231488, 106436736, 159655104, 212873472, 319310208, 638620416]

約数ペア:

[(1, 638620416), (2, 319310208), (3, 212873472), (4, 159655104), (6, 106436736), (7, 91231488), (8, 79827552), (9, 70957824), (12, 53218368), (14, 45615744), (16, 39913776), (18, 35478912), (21, 30410496), (24, 26609184), (27, 23652608), (28, 22807872), (32, 19956888), (36, 17739456), (42, 15205248), (48, 13304592), (54, 11826304), (56, 11403936), (63, 10136832), (64, 9978444), (67, 9531648), (72, 8869728), (84, 7602624), (96, 6652296), (108, 5913152), (112, 5701968), (126, 5068416), (128, 4989222), (134, 4765824), (144, 4434864), (168, 3801312), (189, 3378944), (192, 3326148), (197, 3241728), (201, 3177216), (216, 2956576), (224, 2850984), (252, 2534208), (256, 2494611), (268, 2382912), (288, 2217432), (336, 1900656), (378, 1689472), (384, 1663074), (394, 1620864), (402, 1588608), (432, 1478288), (448, 1425492), (469, 1361664), (504, 1267104), (536, 1191456), (576, 1108716), (591, 1080576), (603, 1059072), (672, 950328), (756, 844736), (768, 831537), (788, 810432), (804, 794304), (864, 739144), (896, 712746), (938, 680832), (1008, 633552), (1072, 595728), (1152, 554358), (1182, 540288), (1206, 529536), (1344, 475164), (1379, 463104), (1407, 453888), (1512, 422368), (1576, 405216), (1608, 397152), (1728, 369572), (1773, 360192), (1792, 356373), (1809, 353024), (1876, 340416), (2016, 316776), (2144, 297864), (2304, 277179), (2364, 270144), (2412, 264768), (2688, 237582), (2758, 231552), (2814, 226944), (3024, 211184), (3152, 202608), (3216, 198576), (3456, 184786), (3546, 180096), (3618, 176512), (3752, 170208), (4032, 158388), (4137, 154368), (4221, 151296), (4288, 148932), (4728, 135072), (4824, 132384), (5319, 120064), (5376, 118791), (5516, 115776), (5628, 113472), (6048, 105592), (6304, 101304), (6432, 99288), (6912, 92393), (7092, 90048), (7236, 88256), (7504, 85104), (8064, 79194), (8274, 77184), (8442, 75648), (8576, 74466), (9456, 67536), (9648, 66192), (10638, 60032), (11032, 57888), (11256, 56736), (12096, 52796), (12411, 51456), (12608, 50652), (12663, 50432), (12864, 49644), (13199, 48384), (14184, 45024), (14472, 44128), (15008, 42552), (16128, 39597), (16548, 38592), (16884, 37824), (17152, 37233), (18912, 33768), (19296, 33096), (21276, 30016), (22064, 28944), (22512, 28368), (24192, 26398), (24822, 25728), (25216, 25326)]