19776561920

素因数分解:

$2^8\times 5^1\times {\mathrm{19}}^2\times {\mathrm{127}}^1\times {\mathrm{337}}^1$

素因数の和:523

約数の個数: 216

約数和(自身を含む): 50538668544

約数和(自身を除く): 30762106624

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 127, 128, 152, 160, 190, 254, 256, 304, 320, 337, 361, 380, 508, 608, 635, 640, 674, 722, 760, 1016, 1216, 1270, 1280, 1348, 1444, 1520, 1685, 1805, 2032, 2413, 2432, 2540, 2696, 2888, 3040, 3370, 3610, 4064, 4826, 4864, 5080, 5392, 5776, 6080, 6403, 6740, 7220, 8128, 9652, 10160, 10784, 11552, 12065, 12160, 12806, 13480, 14440, 16256, 19304, 20320, 21568, 23104, 24130, 24320, 25612, 26960, 28880, 32015, 32512, 38608, 40640, 42799, 43136, 45847, 46208, 48260, 51224, 53920, 57760, 64030, 77216, 81280, 85598, 86272, 91694, 92416, 96520, 102448, 107840, 115520, 121657, 128060, 154432, 162560, 171196, 183388, 193040, 204896, 213995, 215680, 229235, 231040, 243314, 256120, 308864, 342392, 366776, 386080, 409792, 427990, 431360, 458470, 462080, 486628, 512240, 608285, 617728, 684784, 733552, 772160, 813181, 819584, 855980, 916940, 973256, 1024480, 1216570, 1369568, 1467104, 1544320, 1626362, 1639168, 1711960, 1833880, 1946512, 2048960, 2433140, 2739136, 2934208, 3088640, 3252724, 3423920, 3667760, 3893024, 4065905, 4097920, 4866280, 5478272, 5868416, 6505448, 6847840, 7335520, 7786048, 8131810, 8195840, 9732560, 10956544, 11736832, 13010896, 13695680, 14671040, 15450439, 15572096, 16263620, 19465120, 26021792, 27391360, 29342080, 30900878, 31144192, 32527240, 38930240, 52043584, 54782720, 58684160, 61801756, 65054480, 77252195, 77860480, 104087168, 123603512, 130108960, 154504390, 155720960, 208174336, 247207024, 260217920, 309008780, 494414048, 520435840, 618017560, 988828096, 1040871680, 1236035120, 1977656192, 2472070240, 3955312384, 4944140480, 9888280960, 19776561920]

約数ペア:

[(1, 19776561920), (2, 9888280960), (4, 4944140480), (5, 3955312384), (8, 2472070240), (10, 1977656192), (16, 1236035120), (19, 1040871680), (20, 988828096), (32, 618017560), (38, 520435840), (40, 494414048), (64, 309008780), (76, 260217920), (80, 247207024), (95, 208174336), (127, 155720960), (128, 154504390), (152, 130108960), (160, 123603512), (190, 104087168), (254, 77860480), (256, 77252195), (304, 65054480), (320, 61801756), (337, 58684160), (361, 54782720), (380, 52043584), (508, 38930240), (608, 32527240), (635, 31144192), (640, 30900878), (674, 29342080), (722, 27391360), (760, 26021792), (1016, 19465120), (1216, 16263620), (1270, 15572096), (1280, 15450439), (1348, 14671040), (1444, 13695680), (1520, 13010896), (1685, 11736832), (1805, 10956544), (2032, 9732560), (2413, 8195840), (2432, 8131810), (2540, 7786048), (2696, 7335520), (2888, 6847840), (3040, 6505448), (3370, 5868416), (3610, 5478272), (4064, 4866280), (4826, 4097920), (4864, 4065905), (5080, 3893024), (5392, 3667760), (5776, 3423920), (6080, 3252724), (6403, 3088640), (6740, 2934208), (7220, 2739136), (8128, 2433140), (9652, 2048960), (10160, 1946512), (10784, 1833880), (11552, 1711960), (12065, 1639168), (12160, 1626362), (12806, 1544320), (13480, 1467104), (14440, 1369568), (16256, 1216570), (19304, 1024480), (20320, 973256), (21568, 916940), (23104, 855980), (24130, 819584), (24320, 813181), (25612, 772160), (26960, 733552), (28880, 684784), (32015, 617728), (32512, 608285), (38608, 512240), (40640, 486628), (42799, 462080), (43136, 458470), (45847, 431360), (46208, 427990), (48260, 409792), (51224, 386080), (53920, 366776), (57760, 342392), (64030, 308864), (77216, 256120), (81280, 243314), (85598, 231040), (86272, 229235), (91694, 215680), (92416, 213995), (96520, 204896), (102448, 193040), (107840, 183388), (115520, 171196), (121657, 162560), (128060, 154432)]