255940720

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{109}}^1\times {\mathrm{599}}^1$

素因数の和:735

約数の個数: 120

約数和(自身を含む): 699732000

約数和(自身を除く): 443791280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 109, 112, 140, 196, 218, 245, 280, 392, 436, 490, 545, 560, 599, 763, 784, 872, 980, 1090, 1198, 1526, 1744, 1960, 2180, 2396, 2995, 3052, 3815, 3920, 4193, 4360, 4792, 5341, 5990, 6104, 7630, 8386, 8720, 9584, 10682, 11980, 12208, 15260, 16772, 20965, 21364, 23960, 26705, 29351, 30520, 33544, 41930, 42728, 47920, 53410, 58702, 61040, 65291, 67088, 83860, 85456, 106820, 117404, 130582, 146755, 167720, 213640, 234808, 261164, 293510, 326455, 335440, 427280, 457037, 469616, 522328, 587020, 652910, 914074, 1044656, 1174040, 1305820, 1828148, 2285185, 2348080, 2611640, 3199259, 3656296, 4570370, 5223280, 6398518, 7312592, 9140740, 12797036, 15996295, 18281480, 25594072, 31992590, 36562960, 51188144, 63985180, 127970360, 255940720]

約数ペア:

[(1, 255940720), (2, 127970360), (4, 63985180), (5, 51188144), (7, 36562960), (8, 31992590), (10, 25594072), (14, 18281480), (16, 15996295), (20, 12797036), (28, 9140740), (35, 7312592), (40, 6398518), (49, 5223280), (56, 4570370), (70, 3656296), (80, 3199259), (98, 2611640), (109, 2348080), (112, 2285185), (140, 1828148), (196, 1305820), (218, 1174040), (245, 1044656), (280, 914074), (392, 652910), (436, 587020), (490, 522328), (545, 469616), (560, 457037), (599, 427280), (763, 335440), (784, 326455), (872, 293510), (980, 261164), (1090, 234808), (1198, 213640), (1526, 167720), (1744, 146755), (1960, 130582), (2180, 117404), (2396, 106820), (2995, 85456), (3052, 83860), (3815, 67088), (3920, 65291), (4193, 61040), (4360, 58702), (4792, 53410), (5341, 47920), (5990, 42728), (6104, 41930), (7630, 33544), (8386, 30520), (8720, 29351), (9584, 26705), (10682, 23960), (11980, 21364), (12208, 20965), (15260, 16772)]