19933089280

素因数分解:

$2^9\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^2$

素因数の和:345

約数の個数: 240

約数和(自身を含む): 53514324864

約数和(自身を除く): 33581235584

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 128, 130, 139, 155, 160, 208, 248, 256, 260, 278, 310, 320, 403, 416, 496, 512, 520, 556, 620, 640, 695, 806, 832, 992, 1040, 1112, 1240, 1280, 1390, 1612, 1664, 1807, 1984, 2015, 2080, 2224, 2480, 2560, 2780, 3224, 3328, 3614, 3968, 4030, 4160, 4309, 4448, 4960, 5560, 6448, 6656, 7228, 7936, 8060, 8320, 8618, 8896, 9035, 9920, 11120, 12896, 14456, 15872, 16120, 16640, 17236, 17792, 18070, 19321, 19840, 21545, 22240, 25792, 28912, 32240, 33280, 34472, 35584, 36140, 38642, 39680, 43090, 44480, 51584, 56017, 57824, 64480, 68944, 71168, 72280, 77284, 79360, 86180, 88960, 96605, 103168, 112034, 115648, 128960, 137888, 144560, 154568, 172360, 177920, 193210, 206336, 224068, 231296, 251173, 257920, 275776, 280085, 289120, 309136, 344720, 355840, 386420, 448136, 462592, 502346, 515840, 551552, 560170, 578240, 598951, 618272, 689440, 772840, 896272, 925184, 1004692, 1031680, 1103104, 1120340, 1156480, 1197902, 1236544, 1255865, 1378880, 1545680, 1792544, 2009384, 2206208, 2240680, 2312960, 2395804, 2473088, 2511730, 2757760, 2994755, 3091360, 3585088, 4018768, 4481360, 4625920, 4791608, 4946176, 5023460, 5515520, 5989510, 6182720, 7170176, 7786363, 8037536, 8962720, 9583216, 9892352, 10046920, 11031040, 11979020, 12365440, 14340352, 15572726, 16075072, 17925440, 19166432, 20093840, 23958040, 24730880, 28680704, 31145452, 32150144, 35850880, 38332864, 38931815, 40187680, 47916080, 49461760, 62290904, 64300288, 71701760, 76665728, 77863630, 80375360, 95832160, 124581808, 128600576, 143403520, 153331456, 155727260, 160750720, 191664320, 249163616, 306662912, 311454520, 321501440, 383328640, 498327232, 622909040, 643002880, 766657280, 996654464, 1245818080, 1533314560, 1993308928, 2491636160, 3986617856, 4983272320, 9966544640, 19933089280]

約数ペア:

[(1, 19933089280), (2, 9966544640), (4, 4983272320), (5, 3986617856), (8, 2491636160), (10, 1993308928), (13, 1533314560), (16, 1245818080), (20, 996654464), (26, 766657280), (31, 643002880), (32, 622909040), (40, 498327232), (52, 383328640), (62, 321501440), (64, 311454520), (65, 306662912), (80, 249163616), (104, 191664320), (124, 160750720), (128, 155727260), (130, 153331456), (139, 143403520), (155, 128600576), (160, 124581808), (208, 95832160), (248, 80375360), (256, 77863630), (260, 76665728), (278, 71701760), (310, 64300288), (320, 62290904), (403, 49461760), (416, 47916080), (496, 40187680), (512, 38931815), (520, 38332864), (556, 35850880), (620, 32150144), (640, 31145452), (695, 28680704), (806, 24730880), (832, 23958040), (992, 20093840), (1040, 19166432), (1112, 17925440), (1240, 16075072), (1280, 15572726), (1390, 14340352), (1612, 12365440), (1664, 11979020), (1807, 11031040), (1984, 10046920), (2015, 9892352), (2080, 9583216), (2224, 8962720), (2480, 8037536), (2560, 7786363), (2780, 7170176), (3224, 6182720), (3328, 5989510), (3614, 5515520), (3968, 5023460), (4030, 4946176), (4160, 4791608), (4309, 4625920), (4448, 4481360), (4960, 4018768), (5560, 3585088), (6448, 3091360), (6656, 2994755), (7228, 2757760), (7936, 2511730), (8060, 2473088), (8320, 2395804), (8618, 2312960), (8896, 2240680), (9035, 2206208), (9920, 2009384), (11120, 1792544), (12896, 1545680), (14456, 1378880), (15872, 1255865), (16120, 1236544), (16640, 1197902), (17236, 1156480), (17792, 1120340), (18070, 1103104), (19321, 1031680), (19840, 1004692), (21545, 925184), (22240, 896272), (25792, 772840), (28912, 689440), (32240, 618272), (33280, 598951), (34472, 578240), (35584, 560170), (36140, 551552), (38642, 515840), (39680, 502346), (43090, 462592), (44480, 448136), (51584, 386420), (56017, 355840), (57824, 344720), (64480, 309136), (68944, 289120), (71168, 280085), (72280, 275776), (77284, 257920), (79360, 251173), (86180, 231296), (88960, 224068), (96605, 206336), (103168, 193210), (112034, 177920), (115648, 172360), (128960, 154568), (137888, 144560)]