1389121920

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{4231}}^1$

素因数の和:4278

約数の個数: 256

約数和(自身を含む): 5179968000

約数和(自身を除く): 3790846080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 27, 30, 32, 36, 38, 40, 45, 48, 54, 57, 60, 64, 72, 76, 80, 90, 95, 96, 108, 114, 120, 128, 135, 144, 152, 160, 171, 180, 190, 192, 216, 228, 240, 270, 285, 288, 304, 320, 342, 360, 380, 384, 432, 456, 480, 513, 540, 570, 576, 608, 640, 684, 720, 760, 855, 864, 912, 960, 1026, 1080, 1140, 1152, 1216, 1368, 1440, 1520, 1710, 1728, 1824, 1920, 2052, 2160, 2280, 2432, 2565, 2736, 2880, 3040, 3420, 3456, 3648, 4104, 4231, 4320, 4560, 5130, 5472, 5760, 6080, 6840, 7296, 8208, 8462, 8640, 9120, 10260, 10944, 12160, 12693, 13680, 16416, 16924, 17280, 18240, 20520, 21155, 21888, 25386, 27360, 32832, 33848, 36480, 38079, 41040, 42310, 50772, 54720, 63465, 65664, 67696, 76158, 80389, 82080, 84620, 101544, 109440, 114237, 126930, 135392, 152316, 160778, 164160, 169240, 190395, 203088, 228474, 241167, 253860, 270784, 304632, 321556, 328320, 338480, 380790, 401945, 406176, 456948, 482334, 507720, 541568, 571185, 609264, 643112, 676960, 723501, 761580, 803890, 812352, 913896, 964668, 1015440, 1142370, 1205835, 1218528, 1286224, 1353920, 1447002, 1523160, 1607780, 1624704, 1827792, 1929336, 2030880, 2170503, 2284740, 2411670, 2437056, 2572448, 2707840, 2894004, 3046320, 3215560, 3617505, 3655584, 3858672, 4061760, 4341006, 4569480, 4823340, 4874112, 5144896, 5788008, 6092640, 6431120, 7235010, 7311168, 7717344, 8123520, 8682012, 9138960, 9646680, 10289792, 10852515, 11576016, 12185280, 12862240, 14470020, 14622336, 15434688, 17364024, 18277920, 19293360, 21705030, 23152032, 24370560, 25724480, 28940040, 30869376, 34728048, 36555840, 38586720, 43410060, 46304064, 51448960, 57880080, 69456096, 73111680, 77173440, 86820120, 92608128, 115760160, 138912192, 154346880, 173640240, 231520320, 277824384, 347280480, 463040640, 694560960, 1389121920]

約数ペア:

[(1, 1389121920), (2, 694560960), (3, 463040640), (4, 347280480), (5, 277824384), (6, 231520320), (8, 173640240), (9, 154346880), (10, 138912192), (12, 115760160), (15, 92608128), (16, 86820120), (18, 77173440), (19, 73111680), (20, 69456096), (24, 57880080), (27, 51448960), (30, 46304064), (32, 43410060), (36, 38586720), (38, 36555840), (40, 34728048), (45, 30869376), (48, 28940040), (54, 25724480), (57, 24370560), (60, 23152032), (64, 21705030), (72, 19293360), (76, 18277920), (80, 17364024), (90, 15434688), (95, 14622336), (96, 14470020), (108, 12862240), (114, 12185280), (120, 11576016), (128, 10852515), (135, 10289792), (144, 9646680), (152, 9138960), (160, 8682012), (171, 8123520), (180, 7717344), (190, 7311168), (192, 7235010), (216, 6431120), (228, 6092640), (240, 5788008), (270, 5144896), (285, 4874112), (288, 4823340), (304, 4569480), (320, 4341006), (342, 4061760), (360, 3858672), (380, 3655584), (384, 3617505), (432, 3215560), (456, 3046320), (480, 2894004), (513, 2707840), (540, 2572448), (570, 2437056), (576, 2411670), (608, 2284740), (640, 2170503), (684, 2030880), (720, 1929336), (760, 1827792), (855, 1624704), (864, 1607780), (912, 1523160), (960, 1447002), (1026, 1353920), (1080, 1286224), (1140, 1218528), (1152, 1205835), (1216, 1142370), (1368, 1015440), (1440, 964668), (1520, 913896), (1710, 812352), (1728, 803890), (1824, 761580), (1920, 723501), (2052, 676960), (2160, 643112), (2280, 609264), (2432, 571185), (2565, 541568), (2736, 507720), (2880, 482334), (3040, 456948), (3420, 406176), (3456, 401945), (3648, 380790), (4104, 338480), (4231, 328320), (4320, 321556), (4560, 304632), (5130, 270784), (5472, 253860), (5760, 241167), (6080, 228474), (6840, 203088), (7296, 190395), (8208, 169240), (8462, 164160), (8640, 160778), (9120, 152316), (10260, 135392), (10944, 126930), (12160, 114237), (12693, 109440), (13680, 101544), (16416, 84620), (16924, 82080), (17280, 80389), (18240, 76158), (20520, 67696), (21155, 65664), (21888, 63465), (25386, 54720), (27360, 50772), (32832, 42310), (33848, 41040), (36480, 38079)]