637495040

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{421}}^1$

素因数の和:475

約数の個数: 216

約数和(自身を含む): 1894199328

約数和(自身を除く): 1256704288

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 64, 65, 70, 80, 91, 104, 112, 128, 130, 140, 160, 169, 182, 208, 224, 256, 260, 280, 320, 338, 364, 416, 421, 448, 455, 520, 560, 640, 676, 728, 832, 842, 845, 896, 910, 1040, 1120, 1183, 1280, 1352, 1456, 1664, 1684, 1690, 1792, 1820, 2080, 2105, 2240, 2366, 2704, 2912, 2947, 3328, 3368, 3380, 3640, 4160, 4210, 4480, 4732, 5408, 5473, 5824, 5894, 5915, 6736, 6760, 7280, 8320, 8420, 8960, 9464, 10816, 10946, 11648, 11788, 11830, 13472, 13520, 14560, 14735, 16640, 16840, 18928, 21632, 21892, 23296, 23576, 23660, 26944, 27040, 27365, 29120, 29470, 33680, 37856, 38311, 43264, 43784, 47152, 47320, 53888, 54080, 54730, 58240, 58940, 67360, 71149, 75712, 76622, 87568, 94304, 94640, 107776, 108160, 109460, 116480, 117880, 134720, 142298, 151424, 153244, 175136, 188608, 189280, 191555, 216320, 218920, 235760, 269440, 284596, 302848, 306488, 350272, 355745, 377216, 378560, 383110, 437840, 471520, 498043, 538880, 569192, 612976, 700544, 711490, 754432, 757120, 766220, 875680, 943040, 996086, 1138384, 1225952, 1401088, 1422980, 1514240, 1532440, 1751360, 1886080, 1992172, 2276768, 2451904, 2490215, 2845960, 3064880, 3502720, 3772160, 3984344, 4553536, 4903808, 4980430, 5691920, 6129760, 7005440, 7968688, 9107072, 9807616, 9960860, 11383840, 12259520, 15937376, 18214144, 19921720, 22767680, 24519040, 31874752, 39843440, 45535360, 49038080, 63749504, 79686880, 91070720, 127499008, 159373760, 318747520, 637495040]

約数ペア:

[(1, 637495040), (2, 318747520), (4, 159373760), (5, 127499008), (7, 91070720), (8, 79686880), (10, 63749504), (13, 49038080), (14, 45535360), (16, 39843440), (20, 31874752), (26, 24519040), (28, 22767680), (32, 19921720), (35, 18214144), (40, 15937376), (52, 12259520), (56, 11383840), (64, 9960860), (65, 9807616), (70, 9107072), (80, 7968688), (91, 7005440), (104, 6129760), (112, 5691920), (128, 4980430), (130, 4903808), (140, 4553536), (160, 3984344), (169, 3772160), (182, 3502720), (208, 3064880), (224, 2845960), (256, 2490215), (260, 2451904), (280, 2276768), (320, 1992172), (338, 1886080), (364, 1751360), (416, 1532440), (421, 1514240), (448, 1422980), (455, 1401088), (520, 1225952), (560, 1138384), (640, 996086), (676, 943040), (728, 875680), (832, 766220), (842, 757120), (845, 754432), (896, 711490), (910, 700544), (1040, 612976), (1120, 569192), (1183, 538880), (1280, 498043), (1352, 471520), (1456, 437840), (1664, 383110), (1684, 378560), (1690, 377216), (1792, 355745), (1820, 350272), (2080, 306488), (2105, 302848), (2240, 284596), (2366, 269440), (2704, 235760), (2912, 218920), (2947, 216320), (3328, 191555), (3368, 189280), (3380, 188608), (3640, 175136), (4160, 153244), (4210, 151424), (4480, 142298), (4732, 134720), (5408, 117880), (5473, 116480), (5824, 109460), (5894, 108160), (5915, 107776), (6736, 94640), (6760, 94304), (7280, 87568), (8320, 76622), (8420, 75712), (8960, 71149), (9464, 67360), (10816, 58940), (10946, 58240), (11648, 54730), (11788, 54080), (11830, 53888), (13472, 47320), (13520, 47152), (14560, 43784), (14735, 43264), (16640, 38311), (16840, 37856), (18928, 33680), (21632, 29470), (21892, 29120), (23296, 27365), (23576, 27040), (23660, 26944)]