128474784

素因数分解:

$2^5\times 3^2\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1$

素因数の和:251

約数の個数: 144

約数和(自身を含む): 380225664

約数和(自身を除く): 251750880

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 61, 71, 72, 96, 103, 122, 142, 144, 183, 206, 213, 244, 284, 288, 309, 366, 412, 426, 488, 549, 568, 618, 639, 732, 824, 852, 927, 976, 1098, 1136, 1236, 1278, 1464, 1648, 1704, 1854, 1952, 2196, 2272, 2472, 2556, 2928, 3296, 3408, 3708, 4331, 4392, 4944, 5112, 5856, 6283, 6816, 7313, 7416, 8662, 8784, 9888, 10224, 12566, 12993, 14626, 14832, 17324, 17568, 18849, 20448, 21939, 25132, 25986, 29252, 29664, 34648, 37698, 38979, 43878, 50264, 51972, 56547, 58504, 65817, 69296, 75396, 77958, 87756, 100528, 103944, 113094, 117008, 131634, 138592, 150792, 155916, 175512, 201056, 207888, 226188, 234016, 263268, 301584, 311832, 351024, 415776, 446093, 452376, 526536, 603168, 623664, 702048, 892186, 904752, 1053072, 1247328, 1338279, 1784372, 1809504, 2106144, 2676558, 3568744, 4014837, 5353116, 7137488, 8029674, 10706232, 14274976, 16059348, 21412464, 32118696, 42824928, 64237392, 128474784]

約数ペア:

[(1, 128474784), (2, 64237392), (3, 42824928), (4, 32118696), (6, 21412464), (8, 16059348), (9, 14274976), (12, 10706232), (16, 8029674), (18, 7137488), (24, 5353116), (32, 4014837), (36, 3568744), (48, 2676558), (61, 2106144), (71, 1809504), (72, 1784372), (96, 1338279), (103, 1247328), (122, 1053072), (142, 904752), (144, 892186), (183, 702048), (206, 623664), (213, 603168), (244, 526536), (284, 452376), (288, 446093), (309, 415776), (366, 351024), (412, 311832), (426, 301584), (488, 263268), (549, 234016), (568, 226188), (618, 207888), (639, 201056), (732, 175512), (824, 155916), (852, 150792), (927, 138592), (976, 131634), (1098, 117008), (1136, 113094), (1236, 103944), (1278, 100528), (1464, 87756), (1648, 77958), (1704, 75396), (1854, 69296), (1952, 65817), (2196, 58504), (2272, 56547), (2472, 51972), (2556, 50264), (2928, 43878), (3296, 38979), (3408, 37698), (3708, 34648), (4331, 29664), (4392, 29252), (4944, 25986), (5112, 25132), (5856, 21939), (6283, 20448), (6816, 18849), (7313, 17568), (7416, 17324), (8662, 14832), (8784, 14626), (9888, 12993), (10224, 12566)]