20380451840

素因数分解:

$2^{10}\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{173}}^2$

素因数の和:397

約数の個数: 264

約数和(自身を含む): 59156007360

約数和(自身を除く): 38775555520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 56, 64, 70, 76, 80, 95, 112, 128, 133, 140, 152, 160, 173, 190, 224, 256, 266, 280, 304, 320, 346, 380, 448, 512, 532, 560, 608, 640, 665, 692, 760, 865, 896, 1024, 1064, 1120, 1211, 1216, 1280, 1330, 1384, 1520, 1730, 1792, 2128, 2240, 2422, 2432, 2560, 2660, 2768, 3040, 3287, 3460, 3584, 4256, 4480, 4844, 4864, 5120, 5320, 5536, 6055, 6080, 6574, 6920, 7168, 8512, 8960, 9688, 9728, 10640, 11072, 12110, 12160, 13148, 13840, 16435, 17024, 17920, 19376, 19456, 21280, 22144, 23009, 24220, 24320, 26296, 27680, 29929, 32870, 34048, 35840, 38752, 42560, 44288, 46018, 48440, 48640, 52592, 55360, 59858, 65740, 68096, 77504, 85120, 88576, 92036, 96880, 97280, 105184, 110720, 115045, 119716, 131480, 136192, 149645, 155008, 170240, 177152, 184072, 193760, 209503, 210368, 221440, 230090, 239432, 262960, 299290, 310016, 340480, 368144, 387520, 419006, 420736, 442880, 460180, 478864, 525920, 568651, 598580, 620032, 680960, 736288, 775040, 838012, 841472, 885760, 920360, 957728, 1047515, 1051840, 1137302, 1197160, 1240064, 1472576, 1550080, 1676024, 1682944, 1840720, 1915456, 2095030, 2103680, 2274604, 2394320, 2843255, 2945152, 3100160, 3352048, 3365888, 3681440, 3830912, 3980557, 4190060, 4207360, 4549208, 4788640, 5686510, 5890304, 6200320, 6704096, 7362880, 7661824, 7961114, 8380120, 8414720, 9098416, 9577280, 11373020, 11780608, 13408192, 14725760, 15323648, 15922228, 16760240, 16829440, 18196832, 19154560, 19902785, 22746040, 23561216, 26816384, 29451520, 30647296, 31844456, 33520480, 36393664, 38309120, 39805570, 45492080, 53632768, 58903040, 63688912, 67040960, 72787328, 76618240, 79611140, 90984160, 107265536, 117806080, 127377824, 134081920, 145574656, 153236480, 159222280, 181968320, 214531072, 254755648, 268163840, 291149312, 318444560, 363936640, 509511296, 536327680, 582298624, 636889120, 727873280, 1019022592, 1072655360, 1273778240, 1455746560, 2038045184, 2547556480, 2911493120, 4076090368, 5095112960, 10190225920, 20380451840]

約数ペア:

[(1, 20380451840), (2, 10190225920), (4, 5095112960), (5, 4076090368), (7, 2911493120), (8, 2547556480), (10, 2038045184), (14, 1455746560), (16, 1273778240), (19, 1072655360), (20, 1019022592), (28, 727873280), (32, 636889120), (35, 582298624), (38, 536327680), (40, 509511296), (56, 363936640), (64, 318444560), (70, 291149312), (76, 268163840), (80, 254755648), (95, 214531072), (112, 181968320), (128, 159222280), (133, 153236480), (140, 145574656), (152, 134081920), (160, 127377824), (173, 117806080), (190, 107265536), (224, 90984160), (256, 79611140), (266, 76618240), (280, 72787328), (304, 67040960), (320, 63688912), (346, 58903040), (380, 53632768), (448, 45492080), (512, 39805570), (532, 38309120), (560, 36393664), (608, 33520480), (640, 31844456), (665, 30647296), (692, 29451520), (760, 26816384), (865, 23561216), (896, 22746040), (1024, 19902785), (1064, 19154560), (1120, 18196832), (1211, 16829440), (1216, 16760240), (1280, 15922228), (1330, 15323648), (1384, 14725760), (1520, 13408192), (1730, 11780608), (1792, 11373020), (2128, 9577280), (2240, 9098416), (2422, 8414720), (2432, 8380120), (2560, 7961114), (2660, 7661824), (2768, 7362880), (3040, 6704096), (3287, 6200320), (3460, 5890304), (3584, 5686510), (4256, 4788640), (4480, 4549208), (4844, 4207360), (4864, 4190060), (5120, 3980557), (5320, 3830912), (5536, 3681440), (6055, 3365888), (6080, 3352048), (6574, 3100160), (6920, 2945152), (7168, 2843255), (8512, 2394320), (8960, 2274604), (9688, 2103680), (9728, 2095030), (10640, 1915456), (11072, 1840720), (12110, 1682944), (12160, 1676024), (13148, 1550080), (13840, 1472576), (16435, 1240064), (17024, 1197160), (17920, 1137302), (19376, 1051840), (19456, 1047515), (21280, 957728), (22144, 920360), (23009, 885760), (24220, 841472), (24320, 838012), (26296, 775040), (27680, 736288), (29929, 680960), (32870, 620032), (34048, 598580), (35840, 568651), (38752, 525920), (42560, 478864), (44288, 460180), (46018, 442880), (48440, 420736), (48640, 419006), (52592, 387520), (55360, 368144), (59858, 340480), (65740, 310016), (68096, 299290), (77504, 262960), (85120, 239432), (88576, 230090), (92036, 221440), (96880, 210368), (97280, 209503), (105184, 193760), (110720, 184072), (115045, 177152), (119716, 170240), (131480, 155008), (136192, 149645)]