1278967520

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{449}}^1\times {\mathrm{937}}^1$

素因数の和:1420

約数の個数: 96

約数和(自身を含む): 3191076000

約数和(自身を除く): 1912108480

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 449, 608, 760, 898, 937, 1520, 1796, 1874, 2245, 3040, 3592, 3748, 4490, 4685, 7184, 7496, 8531, 8980, 9370, 14368, 14992, 17062, 17803, 17960, 18740, 29984, 34124, 35606, 35920, 37480, 42655, 68248, 71212, 71840, 74960, 85310, 89015, 136496, 142424, 149920, 170620, 178030, 272992, 284848, 341240, 356060, 420713, 569696, 682480, 712120, 841426, 1364960, 1424240, 1682852, 2103565, 2848480, 3365704, 4207130, 6731408, 7993547, 8414260, 13462816, 15987094, 16828520, 31974188, 33657040, 39967735, 63948376, 67314080, 79935470, 127896752, 159870940, 255793504, 319741880, 639483760, 1278967520]

約数ペア:

[(1, 1278967520), (2, 639483760), (4, 319741880), (5, 255793504), (8, 159870940), (10, 127896752), (16, 79935470), (19, 67314080), (20, 63948376), (32, 39967735), (38, 33657040), (40, 31974188), (76, 16828520), (80, 15987094), (95, 13462816), (152, 8414260), (160, 7993547), (190, 6731408), (304, 4207130), (380, 3365704), (449, 2848480), (608, 2103565), (760, 1682852), (898, 1424240), (937, 1364960), (1520, 841426), (1796, 712120), (1874, 682480), (2245, 569696), (3040, 420713), (3592, 356060), (3748, 341240), (4490, 284848), (4685, 272992), (7184, 178030), (7496, 170620), (8531, 149920), (8980, 142424), (9370, 136496), (14368, 89015), (14992, 85310), (17062, 74960), (17803, 71840), (17960, 71212), (18740, 68248), (29984, 42655), (34124, 37480), (35606, 35920)]