19915550720

素因数分解:

$2^{12}\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1$

素因数の和:219

約数の個数: 416

約数和(自身を含む): 56364564480

約数和(自身を除く): 36449013760

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 31, 32, 38, 40, 52, 62, 64, 65, 76, 80, 95, 104, 124, 127, 128, 130, 152, 155, 160, 190, 208, 247, 248, 254, 256, 260, 304, 310, 320, 380, 403, 416, 494, 496, 508, 512, 520, 589, 608, 620, 635, 640, 760, 806, 832, 988, 992, 1016, 1024, 1040, 1178, 1216, 1235, 1240, 1270, 1280, 1520, 1612, 1651, 1664, 1976, 1984, 2015, 2032, 2048, 2080, 2356, 2413, 2432, 2470, 2480, 2540, 2560, 2945, 3040, 3224, 3302, 3328, 3937, 3952, 3968, 4030, 4064, 4096, 4160, 4712, 4826, 4864, 4940, 4960, 5080, 5120, 5890, 6080, 6448, 6604, 6656, 7657, 7874, 7904, 7936, 8060, 8128, 8255, 8320, 9424, 9652, 9728, 9880, 9920, 10160, 10240, 11780, 12065, 12160, 12896, 13208, 13312, 15314, 15748, 15808, 15872, 16120, 16256, 16510, 16640, 18848, 19304, 19456, 19685, 19760, 19840, 20320, 20480, 23560, 24130, 24320, 25792, 26416, 26624, 30628, 31369, 31496, 31616, 31744, 32240, 32512, 33020, 33280, 37696, 38285, 38608, 38912, 39370, 39520, 39680, 40640, 47120, 48260, 48640, 51181, 51584, 52832, 53248, 61256, 62738, 62992, 63232, 63488, 64480, 65024, 66040, 66560, 74803, 75392, 76570, 77216, 77824, 78740, 79040, 79360, 81280, 94240, 96520, 97280, 102362, 103168, 105664, 122512, 125476, 125984, 126464, 126976, 128960, 130048, 132080, 133120, 149606, 150784, 153140, 154432, 156845, 157480, 158080, 158720, 162560, 188480, 193040, 194560, 204724, 206336, 211328, 245024, 250952, 251968, 252928, 255905, 257920, 260096, 264160, 266240, 299212, 301568, 306280, 308864, 313690, 314960, 316160, 317440, 325120, 374015, 376960, 386080, 389120, 409448, 412672, 422656, 490048, 501904, 503936, 505856, 511810, 515840, 520192, 528320, 598424, 603136, 612560, 617728, 627380, 629920, 632320, 634880, 650240, 748030, 753920, 772160, 818896, 825344, 845312, 972439, 980096, 1003808, 1007872, 1011712, 1023620, 1031680, 1056640, 1196848, 1206272, 1225120, 1235456, 1254760, 1259840, 1264640, 1300480, 1496060, 1507840, 1544320, 1637792, 1650688, 1690624, 1944878, 1960192, 2007616, 2015744, 2047240, 2063360, 2113280, 2393696, 2412544, 2450240, 2470912, 2509520, 2519680, 2529280, 2600960, 2992120, 3015680, 3088640, 3275584, 3381248, 3889756, 3920384, 4015232, 4031488, 4094480, 4126720, 4226560, 4787392, 4862195, 4900480, 4941824, 5019040, 5039360, 5058560, 5984240, 6031360, 6177280, 6551168, 6762496, 7779512, 7840768, 8030464, 8062976, 8188960, 8253440, 8453120, 9574784, 9724390, 9800960, 9883648, 10038080, 10078720, 11968480, 12062720, 12354560, 13102336, 15559024, 15681536, 16060928, 16125952, 16377920, 16906240, 19149568, 19448780, 19601920, 20076160, 20157440, 23936960, 24709120, 26204672, 31118048, 31363072, 32121856, 32755840, 33812480, 38299136, 38897560, 39203840, 40152320, 40314880, 47873920, 49418240, 52409344, 62236096, 64243712, 65511680, 76598272, 77795120, 78407680, 80304640, 80629760, 95747840, 104818688, 124472192, 128487424, 131023360, 153196544, 155590240, 156815360, 160609280, 191495680, 209637376, 248944384, 262046720, 306393088, 311180480, 321218560, 382991360, 497888768, 524093440, 622360960, 642437120, 765982720, 995777536, 1048186880, 1244721920, 1531965440, 1991555072, 2489443840, 3983110144, 4978887680, 9957775360, 19915550720]

約数ペア:

[(1, 19915550720), (2, 9957775360), (4, 4978887680), (5, 3983110144), (8, 2489443840), (10, 1991555072), (13, 1531965440), (16, 1244721920), (19, 1048186880), (20, 995777536), (26, 765982720), (31, 642437120), (32, 622360960), (38, 524093440), (40, 497888768), (52, 382991360), (62, 321218560), (64, 311180480), (65, 306393088), (76, 262046720), (80, 248944384), (95, 209637376), (104, 191495680), (124, 160609280), (127, 156815360), (128, 155590240), (130, 153196544), (152, 131023360), (155, 128487424), (160, 124472192), (190, 104818688), (208, 95747840), (247, 80629760), (248, 80304640), (254, 78407680), (256, 77795120), (260, 76598272), (304, 65511680), (310, 64243712), (320, 62236096), (380, 52409344), (403, 49418240), (416, 47873920), (494, 40314880), (496, 40152320), (508, 39203840), (512, 38897560), (520, 38299136), (589, 33812480), (608, 32755840), (620, 32121856), (635, 31363072), (640, 31118048), (760, 26204672), (806, 24709120), (832, 23936960), (988, 20157440), (992, 20076160), (1016, 19601920), (1024, 19448780), (1040, 19149568), (1178, 16906240), (1216, 16377920), (1235, 16125952), (1240, 16060928), (1270, 15681536), (1280, 15559024), (1520, 13102336), (1612, 12354560), (1651, 12062720), (1664, 11968480), (1976, 10078720), (1984, 10038080), (2015, 9883648), (2032, 9800960), (2048, 9724390), (2080, 9574784), (2356, 8453120), (2413, 8253440), (2432, 8188960), (2470, 8062976), (2480, 8030464), (2540, 7840768), (2560, 7779512), (2945, 6762496), (3040, 6551168), (3224, 6177280), (3302, 6031360), (3328, 5984240), (3937, 5058560), (3952, 5039360), (3968, 5019040), (4030, 4941824), (4064, 4900480), (4096, 4862195), (4160, 4787392), (4712, 4226560), (4826, 4126720), (4864, 4094480), (4940, 4031488), (4960, 4015232), (5080, 3920384), (5120, 3889756), (5890, 3381248), (6080, 3275584), (6448, 3088640), (6604, 3015680), (6656, 2992120), (7657, 2600960), (7874, 2529280), (7904, 2519680), (7936, 2509520), (8060, 2470912), (8128, 2450240), (8255, 2412544), (8320, 2393696), (9424, 2113280), (9652, 2063360), (9728, 2047240), (9880, 2015744), (9920, 2007616), (10160, 1960192), (10240, 1944878), (11780, 1690624), (12065, 1650688), (12160, 1637792), (12896, 1544320), (13208, 1507840), (13312, 1496060), (15314, 1300480), (15748, 1264640), (15808, 1259840), (15872, 1254760), (16120, 1235456), (16256, 1225120), (16510, 1206272), (16640, 1196848), (18848, 1056640), (19304, 1031680), (19456, 1023620), (19685, 1011712), (19760, 1007872), (19840, 1003808), (20320, 980096), (20480, 972439), (23560, 845312), (24130, 825344), (24320, 818896), (25792, 772160), (26416, 753920), (26624, 748030), (30628, 650240), (31369, 634880), (31496, 632320), (31616, 629920), (31744, 627380), (32240, 617728), (32512, 612560), (33020, 603136), (33280, 598424), (37696, 528320), (38285, 520192), (38608, 515840), (38912, 511810), (39370, 505856), (39520, 503936), (39680, 501904), (40640, 490048), (47120, 422656), (48260, 412672), (48640, 409448), (51181, 389120), (51584, 386080), (52832, 376960), (53248, 374015), (61256, 325120), (62738, 317440), (62992, 316160), (63232, 314960), (63488, 313690), (64480, 308864), (65024, 306280), (66040, 301568), (66560, 299212), (74803, 266240), (75392, 264160), (76570, 260096), (77216, 257920), (77824, 255905), (78740, 252928), (79040, 251968), (79360, 250952), (81280, 245024), (94240, 211328), (96520, 206336), (97280, 204724), (102362, 194560), (103168, 193040), (105664, 188480), (122512, 162560), (125476, 158720), (125984, 158080), (126464, 157480), (126976, 156845), (128960, 154432), (130048, 153140), (132080, 150784), (133120, 149606)]