127287280

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{349}}^1$

素因数の和:506

約数の個数: 80

約数和(自身を含む): 306230400

約数和(自身を除く): 178943120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 97, 188, 194, 235, 349, 376, 388, 470, 485, 698, 752, 776, 940, 970, 1396, 1552, 1745, 1880, 1940, 2792, 3490, 3760, 3880, 4559, 5584, 6980, 7760, 9118, 13960, 16403, 18236, 22795, 27920, 32806, 33853, 36472, 45590, 65612, 67706, 72944, 82015, 91180, 131224, 135412, 164030, 169265, 182360, 262448, 270824, 328060, 338530, 364720, 541648, 656120, 677060, 1312240, 1354120, 1591091, 2708240, 3182182, 6364364, 7955455, 12728728, 15910910, 25457456, 31821820, 63643640, 127287280]

約数ペア:

[(1, 127287280), (2, 63643640), (4, 31821820), (5, 25457456), (8, 15910910), (10, 12728728), (16, 7955455), (20, 6364364), (40, 3182182), (47, 2708240), (80, 1591091), (94, 1354120), (97, 1312240), (188, 677060), (194, 656120), (235, 541648), (349, 364720), (376, 338530), (388, 328060), (470, 270824), (485, 262448), (698, 182360), (752, 169265), (776, 164030), (940, 135412), (970, 131224), (1396, 91180), (1552, 82015), (1745, 72944), (1880, 67706), (1940, 65612), (2792, 45590), (3490, 36472), (3760, 33853), (3880, 32806), (4559, 27920), (5584, 22795), (6980, 18236), (7760, 16403), (9118, 13960)]