19429920

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1$

素因数の和:255

約数の個数: 144

約数和(自身を含む): 67459392

約数和(自身を除く): 48029472

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 103, 120, 131, 144, 160, 180, 206, 240, 262, 288, 309, 360, 393, 412, 480, 515, 524, 618, 655, 720, 786, 824, 927, 1030, 1048, 1179, 1236, 1310, 1440, 1545, 1572, 1648, 1854, 1965, 2060, 2096, 2358, 2472, 2620, 3090, 3144, 3296, 3708, 3930, 4120, 4192, 4635, 4716, 4944, 5240, 5895, 6180, 6288, 7416, 7860, 8240, 9270, 9432, 9888, 10480, 11790, 12360, 12576, 13493, 14832, 15720, 16480, 18540, 18864, 20960, 23580, 24720, 26986, 29664, 31440, 37080, 37728, 40479, 47160, 49440, 53972, 62880, 67465, 74160, 80958, 94320, 107944, 121437, 134930, 148320, 161916, 188640, 202395, 215888, 242874, 269860, 323832, 404790, 431776, 485748, 539720, 607185, 647664, 809580, 971496, 1079440, 1214370, 1295328, 1619160, 1942992, 2158880, 2428740, 3238320, 3885984, 4857480, 6476640, 9714960, 19429920]

約数ペア:

[(1, 19429920), (2, 9714960), (3, 6476640), (4, 4857480), (5, 3885984), (6, 3238320), (8, 2428740), (9, 2158880), (10, 1942992), (12, 1619160), (15, 1295328), (16, 1214370), (18, 1079440), (20, 971496), (24, 809580), (30, 647664), (32, 607185), (36, 539720), (40, 485748), (45, 431776), (48, 404790), (60, 323832), (72, 269860), (80, 242874), (90, 215888), (96, 202395), (103, 188640), (120, 161916), (131, 148320), (144, 134930), (160, 121437), (180, 107944), (206, 94320), (240, 80958), (262, 74160), (288, 67465), (309, 62880), (360, 53972), (393, 49440), (412, 47160), (480, 40479), (515, 37728), (524, 37080), (618, 31440), (655, 29664), (720, 26986), (786, 24720), (824, 23580), (927, 20960), (1030, 18864), (1048, 18540), (1179, 16480), (1236, 15720), (1310, 14832), (1440, 13493), (1545, 12576), (1572, 12360), (1648, 11790), (1854, 10480), (1965, 9888), (2060, 9432), (2096, 9270), (2358, 8240), (2472, 7860), (2620, 7416), (3090, 6288), (3144, 6180), (3296, 5895), (3708, 5240), (3930, 4944), (4120, 4716), (4192, 4635)]