388967680

素因数分解:

$2^8\times 5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{191}}^1$

素因数の和:292

約数の個数: 144

約数和(自身を含む): 984259584

約数和(自身を除く): 595291904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 43, 64, 74, 80, 86, 128, 148, 160, 172, 185, 191, 215, 256, 296, 320, 344, 370, 382, 430, 592, 640, 688, 740, 764, 860, 955, 1184, 1280, 1376, 1480, 1528, 1591, 1720, 1910, 2368, 2752, 2960, 3056, 3182, 3440, 3820, 4736, 5504, 5920, 6112, 6364, 6880, 7067, 7640, 7955, 8213, 9472, 11008, 11840, 12224, 12728, 13760, 14134, 15280, 15910, 16426, 23680, 24448, 25456, 27520, 28268, 30560, 31820, 32852, 35335, 41065, 47360, 48896, 50912, 55040, 56536, 61120, 63640, 65704, 70670, 82130, 101824, 113072, 122240, 127280, 131408, 141340, 164260, 203648, 226144, 244480, 254560, 262816, 282680, 303881, 328520, 407296, 452288, 509120, 525632, 565360, 607762, 657040, 904576, 1018240, 1051264, 1130720, 1215524, 1314080, 1519405, 1809152, 2036480, 2102528, 2261440, 2431048, 2628160, 3038810, 4522880, 4862096, 5256320, 6077620, 9045760, 9724192, 10512640, 12155240, 19448384, 24310480, 38896768, 48620960, 77793536, 97241920, 194483840, 388967680]

約数ペア:

[(1, 388967680), (2, 194483840), (4, 97241920), (5, 77793536), (8, 48620960), (10, 38896768), (16, 24310480), (20, 19448384), (32, 12155240), (37, 10512640), (40, 9724192), (43, 9045760), (64, 6077620), (74, 5256320), (80, 4862096), (86, 4522880), (128, 3038810), (148, 2628160), (160, 2431048), (172, 2261440), (185, 2102528), (191, 2036480), (215, 1809152), (256, 1519405), (296, 1314080), (320, 1215524), (344, 1130720), (370, 1051264), (382, 1018240), (430, 904576), (592, 657040), (640, 607762), (688, 565360), (740, 525632), (764, 509120), (860, 452288), (955, 407296), (1184, 328520), (1280, 303881), (1376, 282680), (1480, 262816), (1528, 254560), (1591, 244480), (1720, 226144), (1910, 203648), (2368, 164260), (2752, 141340), (2960, 131408), (3056, 127280), (3182, 122240), (3440, 113072), (3820, 101824), (4736, 82130), (5504, 70670), (5920, 65704), (6112, 63640), (6364, 61120), (6880, 56536), (7067, 55040), (7640, 50912), (7955, 48896), (8213, 47360), (9472, 41065), (11008, 35335), (11840, 32852), (12224, 31820), (12728, 30560), (13760, 28268), (14134, 27520), (15280, 25456), (15910, 24448), (16426, 23680)]