20467793152

素因数分解:

$2^8\times {\mathrm{31}}^2\times {\mathrm{271}}^1\times {\mathrm{307}}^1$

素因数の和:656

約数の個数: 108

約数和(自身を含む): 42509869248

約数和(自身を除く): 22042076096

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 256, 271, 307, 496, 542, 614, 961, 992, 1084, 1228, 1922, 1984, 2168, 2456, 3844, 3968, 4336, 4912, 7688, 7936, 8401, 8672, 9517, 9824, 15376, 16802, 17344, 19034, 19648, 30752, 33604, 34688, 38068, 39296, 61504, 67208, 69376, 76136, 78592, 83197, 123008, 134416, 152272, 166394, 246016, 260431, 268832, 295027, 304544, 332788, 520862, 537664, 590054, 609088, 665576, 1041724, 1075328, 1180108, 1218176, 1331152, 2083448, 2150656, 2360216, 2436352, 2579107, 2662304, 4166896, 4720432, 5158214, 5324608, 8333792, 9440864, 10316428, 10649216, 16667584, 18881728, 20632856, 21298432, 33335168, 37763456, 41265712, 66670336, 75526912, 79952317, 82531424, 159904634, 165062848, 319809268, 330125696, 639618536, 660251392, 1279237072, 2558474144, 5116948288, 10233896576, 20467793152]

約数ペア:

[(1, 20467793152), (2, 10233896576), (4, 5116948288), (8, 2558474144), (16, 1279237072), (31, 660251392), (32, 639618536), (62, 330125696), (64, 319809268), (124, 165062848), (128, 159904634), (248, 82531424), (256, 79952317), (271, 75526912), (307, 66670336), (496, 41265712), (542, 37763456), (614, 33335168), (961, 21298432), (992, 20632856), (1084, 18881728), (1228, 16667584), (1922, 10649216), (1984, 10316428), (2168, 9440864), (2456, 8333792), (3844, 5324608), (3968, 5158214), (4336, 4720432), (4912, 4166896), (7688, 2662304), (7936, 2579107), (8401, 2436352), (8672, 2360216), (9517, 2150656), (9824, 2083448), (15376, 1331152), (16802, 1218176), (17344, 1180108), (19034, 1075328), (19648, 1041724), (30752, 665576), (33604, 609088), (34688, 590054), (38068, 537664), (39296, 520862), (61504, 332788), (67208, 304544), (69376, 295027), (76136, 268832), (78592, 260431), (83197, 246016), (123008, 166394), (134416, 152272)]