1561949872

素因数分解:

$2^4\times 7^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1$

素因数の和:208

約数の個数: 240

約数和(自身を含む): 3989744640

約数和(自身を除く): 2427794768

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 23, 28, 38, 46, 47, 49, 56, 76, 92, 94, 97, 98, 112, 133, 152, 161, 184, 188, 194, 196, 266, 304, 322, 329, 368, 376, 388, 392, 437, 532, 644, 658, 679, 752, 776, 784, 874, 893, 931, 1064, 1081, 1127, 1288, 1316, 1358, 1552, 1748, 1786, 1843, 1862, 2128, 2162, 2231, 2254, 2303, 2576, 2632, 2716, 3059, 3496, 3572, 3686, 3724, 4324, 4462, 4508, 4559, 4606, 4753, 5264, 5432, 6118, 6251, 6992, 7144, 7372, 7448, 7567, 8648, 8924, 9016, 9118, 9212, 9506, 10864, 12236, 12502, 12901, 14288, 14744, 14896, 15134, 15617, 17296, 17848, 18032, 18236, 18424, 19012, 20539, 21413, 24472, 25004, 25802, 29488, 30268, 31234, 31913, 35696, 36472, 36848, 38024, 41078, 42389, 42826, 43757, 48944, 50008, 51604, 52969, 60536, 62468, 63826, 72944, 76048, 82156, 84778, 85652, 86621, 87514, 90307, 100016, 103208, 104857, 105938, 109319, 121072, 124936, 127652, 143773, 164312, 169556, 171304, 173242, 175028, 180614, 206416, 209714, 211876, 218638, 223391, 249872, 255304, 287546, 296723, 328624, 339112, 342608, 346484, 350056, 361228, 419428, 423752, 437276, 446782, 510608, 575092, 593446, 606347, 678224, 692968, 700112, 722456, 733999, 838856, 847504, 874552, 893564, 1006411, 1150184, 1186892, 1212694, 1385936, 1444912, 1467998, 1677712, 1749104, 1787128, 1992283, 2012822, 2077061, 2300368, 2373784, 2425388, 2935996, 3574256, 3984566, 4025644, 4154122, 4244429, 4747568, 4850776, 5137993, 5871992, 7969132, 8051288, 8308244, 8488858, 9701552, 10275986, 11743984, 13945981, 15938264, 16102576, 16616488, 16977716, 20551972, 27891962, 31876528, 33232976, 33955432, 41103944, 55783924, 67910864, 82207888, 97621867, 111567848, 195243734, 223135696, 390487468, 780974936, 1561949872]

約数ペア:

[(1, 1561949872), (2, 780974936), (4, 390487468), (7, 223135696), (8, 195243734), (14, 111567848), (16, 97621867), (19, 82207888), (23, 67910864), (28, 55783924), (38, 41103944), (46, 33955432), (47, 33232976), (49, 31876528), (56, 27891962), (76, 20551972), (92, 16977716), (94, 16616488), (97, 16102576), (98, 15938264), (112, 13945981), (133, 11743984), (152, 10275986), (161, 9701552), (184, 8488858), (188, 8308244), (194, 8051288), (196, 7969132), (266, 5871992), (304, 5137993), (322, 4850776), (329, 4747568), (368, 4244429), (376, 4154122), (388, 4025644), (392, 3984566), (437, 3574256), (532, 2935996), (644, 2425388), (658, 2373784), (679, 2300368), (752, 2077061), (776, 2012822), (784, 1992283), (874, 1787128), (893, 1749104), (931, 1677712), (1064, 1467998), (1081, 1444912), (1127, 1385936), (1288, 1212694), (1316, 1186892), (1358, 1150184), (1552, 1006411), (1748, 893564), (1786, 874552), (1843, 847504), (1862, 838856), (2128, 733999), (2162, 722456), (2231, 700112), (2254, 692968), (2303, 678224), (2576, 606347), (2632, 593446), (2716, 575092), (3059, 510608), (3496, 446782), (3572, 437276), (3686, 423752), (3724, 419428), (4324, 361228), (4462, 350056), (4508, 346484), (4559, 342608), (4606, 339112), (4753, 328624), (5264, 296723), (5432, 287546), (6118, 255304), (6251, 249872), (6992, 223391), (7144, 218638), (7372, 211876), (7448, 209714), (7567, 206416), (8648, 180614), (8924, 175028), (9016, 173242), (9118, 171304), (9212, 169556), (9506, 164312), (10864, 143773), (12236, 127652), (12502, 124936), (12901, 121072), (14288, 109319), (14744, 105938), (14896, 104857), (15134, 103208), (15617, 100016), (17296, 90307), (17848, 87514), (18032, 86621), (18236, 85652), (18424, 84778), (19012, 82156), (20539, 76048), (21413, 72944), (24472, 63826), (25004, 62468), (25802, 60536), (29488, 52969), (30268, 51604), (31234, 50008), (31913, 48944), (35696, 43757), (36472, 42826), (36848, 42389), (38024, 41078)]