720921344

素因数分解:

$2^8\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{419}}^1$

素因数の和:506

約数の個数: 144

約数和(自身を含む): 1730695680

約数和(自身を除く): 1009774336

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 32, 44, 47, 52, 64, 88, 94, 104, 128, 143, 176, 188, 208, 256, 286, 352, 376, 416, 419, 517, 572, 611, 704, 752, 832, 838, 1034, 1144, 1222, 1408, 1504, 1664, 1676, 2068, 2288, 2444, 2816, 3008, 3328, 3352, 4136, 4576, 4609, 4888, 5447, 6016, 6704, 6721, 8272, 9152, 9218, 9776, 10894, 12032, 13408, 13442, 16544, 18304, 18436, 19552, 19693, 21788, 26816, 26884, 33088, 36608, 36872, 39104, 39386, 43576, 53632, 53768, 59917, 66176, 73744, 78208, 78772, 87152, 107264, 107536, 119834, 132352, 147488, 156416, 157544, 174304, 215072, 216623, 239668, 256009, 294976, 315088, 348608, 430144, 433246, 479336, 512018, 589952, 630176, 697216, 860288, 866492, 958672, 1024036, 1179904, 1260352, 1394432, 1720576, 1732984, 1917344, 2048072, 2520704, 2816099, 3465968, 3834688, 4096144, 5041408, 5632198, 6931936, 7669376, 8192288, 11264396, 13863872, 15338752, 16384576, 22528792, 27727744, 32769152, 45057584, 55455488, 65538304, 90115168, 180230336, 360460672, 720921344]

約数ペア:

[(1, 720921344), (2, 360460672), (4, 180230336), (8, 90115168), (11, 65538304), (13, 55455488), (16, 45057584), (22, 32769152), (26, 27727744), (32, 22528792), (44, 16384576), (47, 15338752), (52, 13863872), (64, 11264396), (88, 8192288), (94, 7669376), (104, 6931936), (128, 5632198), (143, 5041408), (176, 4096144), (188, 3834688), (208, 3465968), (256, 2816099), (286, 2520704), (352, 2048072), (376, 1917344), (416, 1732984), (419, 1720576), (517, 1394432), (572, 1260352), (611, 1179904), (704, 1024036), (752, 958672), (832, 866492), (838, 860288), (1034, 697216), (1144, 630176), (1222, 589952), (1408, 512018), (1504, 479336), (1664, 433246), (1676, 430144), (2068, 348608), (2288, 315088), (2444, 294976), (2816, 256009), (3008, 239668), (3328, 216623), (3352, 215072), (4136, 174304), (4576, 157544), (4609, 156416), (4888, 147488), (5447, 132352), (6016, 119834), (6704, 107536), (6721, 107264), (8272, 87152), (9152, 78772), (9218, 78208), (9776, 73744), (10894, 66176), (12032, 59917), (13408, 53768), (13442, 53632), (16544, 43576), (18304, 39386), (18436, 39104), (19552, 36872), (19693, 36608), (21788, 33088), (26816, 26884)]