127984080880

素因数分解:

$2^4\times 5^1\times {\mathrm{389}}^1\times {\mathrm{1663}}^1\times {\mathrm{2473}}^1$

素因数の和:4538

約数の個数: 80

約数和(自身を含む): 298628029440

約数和(自身を除く): 170643948560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 389, 778, 1556, 1663, 1945, 2473, 3112, 3326, 3890, 4946, 6224, 6652, 7780, 8315, 9892, 12365, 13304, 15560, 16630, 19784, 24730, 26608, 31120, 33260, 39568, 49460, 66520, 98920, 133040, 197840, 646907, 961997, 1293814, 1923994, 2587628, 3234535, 3847988, 4112599, 4809985, 5175256, 6469070, 7695976, 8225198, 9619970, 10350512, 12938140, 15391952, 16450396, 19239940, 20562995, 25876280, 32900792, 38479880, 41125990, 51752560, 65801584, 76959760, 82251980, 164503960, 329007920, 1599801011, 3199602022, 6399204044, 7999005055, 12798408088, 15998010110, 25596816176, 31996020220, 63992040440, 127984080880]

約数ペア:

[(1, 127984080880), (2, 63992040440), (4, 31996020220), (5, 25596816176), (8, 15998010110), (10, 12798408088), (16, 7999005055), (20, 6399204044), (40, 3199602022), (80, 1599801011), (389, 329007920), (778, 164503960), (1556, 82251980), (1663, 76959760), (1945, 65801584), (2473, 51752560), (3112, 41125990), (3326, 38479880), (3890, 32900792), (4946, 25876280), (6224, 20562995), (6652, 19239940), (7780, 16450396), (8315, 15391952), (9892, 12938140), (12365, 10350512), (13304, 9619970), (15560, 8225198), (16630, 7695976), (19784, 6469070), (24730, 5175256), (26608, 4809985), (31120, 4112599), (33260, 3847988), (39568, 3234535), (49460, 2587628), (66520, 1923994), (98920, 1293814), (133040, 961997), (197840, 646907)]