255374080

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{149}}^1$

素因数の和:286

約数の個数: 144

約数和(自身を含む): 669614400

約数和(自身を除く): 414240320

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 103, 104, 128, 130, 149, 160, 206, 208, 256, 260, 298, 320, 412, 416, 515, 520, 596, 640, 745, 824, 832, 1030, 1040, 1192, 1280, 1339, 1490, 1648, 1664, 1937, 2060, 2080, 2384, 2678, 2980, 3296, 3328, 3874, 4120, 4160, 4768, 5356, 5960, 6592, 6695, 7748, 8240, 8320, 9536, 9685, 10712, 11920, 13184, 13390, 15347, 15496, 16480, 16640, 19072, 19370, 21424, 23840, 26368, 26780, 30694, 30992, 32960, 38144, 38740, 42848, 47680, 53560, 61388, 61984, 65920, 76735, 77480, 85696, 95360, 107120, 122776, 123968, 131840, 153470, 154960, 171392, 190720, 199511, 214240, 245552, 247936, 306940, 309920, 342784, 399022, 428480, 491104, 495872, 613880, 619840, 798044, 856960, 982208, 997555, 1227760, 1239680, 1596088, 1713920, 1964416, 1995110, 2455520, 2479360, 3192176, 3928832, 3990220, 4911040, 6384352, 7980440, 9822080, 12768704, 15960880, 19644160, 25537408, 31921760, 51074816, 63843520, 127687040, 255374080]

約数ペア:

[(1, 255374080), (2, 127687040), (4, 63843520), (5, 51074816), (8, 31921760), (10, 25537408), (13, 19644160), (16, 15960880), (20, 12768704), (26, 9822080), (32, 7980440), (40, 6384352), (52, 4911040), (64, 3990220), (65, 3928832), (80, 3192176), (103, 2479360), (104, 2455520), (128, 1995110), (130, 1964416), (149, 1713920), (160, 1596088), (206, 1239680), (208, 1227760), (256, 997555), (260, 982208), (298, 856960), (320, 798044), (412, 619840), (416, 613880), (515, 495872), (520, 491104), (596, 428480), (640, 399022), (745, 342784), (824, 309920), (832, 306940), (1030, 247936), (1040, 245552), (1192, 214240), (1280, 199511), (1339, 190720), (1490, 171392), (1648, 154960), (1664, 153470), (1937, 131840), (2060, 123968), (2080, 122776), (2384, 107120), (2678, 95360), (2980, 85696), (3296, 77480), (3328, 76735), (3874, 65920), (4120, 61984), (4160, 61388), (4768, 53560), (5356, 47680), (5960, 42848), (6592, 38740), (6695, 38144), (7748, 32960), (8240, 30992), (8320, 30694), (9536, 26780), (9685, 26368), (10712, 23840), (11920, 21424), (13184, 19370), (13390, 19072), (15347, 16640), (15496, 16480)]