20161440

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{359}}^1$

素因数の和:396

約数の個数: 192

約数和(自身を含む): 76204800

約数和(自身を除く): 56043360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 32, 36, 39, 40, 45, 48, 52, 54, 60, 65, 72, 78, 80, 90, 96, 104, 108, 117, 120, 130, 135, 144, 156, 160, 180, 195, 208, 216, 234, 240, 260, 270, 288, 312, 351, 359, 360, 390, 416, 432, 468, 480, 520, 540, 585, 624, 702, 718, 720, 780, 864, 936, 1040, 1077, 1080, 1170, 1248, 1404, 1436, 1440, 1560, 1755, 1795, 1872, 2080, 2154, 2160, 2340, 2808, 2872, 3120, 3231, 3510, 3590, 3744, 4308, 4320, 4667, 4680, 5385, 5616, 5744, 6240, 6462, 7020, 7180, 8616, 9334, 9360, 9693, 10770, 11232, 11488, 12924, 14001, 14040, 14360, 16155, 17232, 18668, 18720, 19386, 21540, 23335, 25848, 28002, 28080, 28720, 32310, 34464, 37336, 38772, 42003, 43080, 46670, 48465, 51696, 56004, 56160, 57440, 64620, 70005, 74672, 77544, 84006, 86160, 93340, 96930, 103392, 112008, 126009, 129240, 140010, 149344, 155088, 168012, 172320, 186680, 193860, 210015, 224016, 252018, 258480, 280020, 310176, 336024, 373360, 387720, 420030, 448032, 504036, 516960, 560040, 630045, 672048, 746720, 775440, 840060, 1008072, 1120080, 1260090, 1344096, 1550880, 1680120, 2016144, 2240160, 2520180, 3360240, 4032288, 5040360, 6720480, 10080720, 20161440]

約数ペア:

[(1, 20161440), (2, 10080720), (3, 6720480), (4, 5040360), (5, 4032288), (6, 3360240), (8, 2520180), (9, 2240160), (10, 2016144), (12, 1680120), (13, 1550880), (15, 1344096), (16, 1260090), (18, 1120080), (20, 1008072), (24, 840060), (26, 775440), (27, 746720), (30, 672048), (32, 630045), (36, 560040), (39, 516960), (40, 504036), (45, 448032), (48, 420030), (52, 387720), (54, 373360), (60, 336024), (65, 310176), (72, 280020), (78, 258480), (80, 252018), (90, 224016), (96, 210015), (104, 193860), (108, 186680), (117, 172320), (120, 168012), (130, 155088), (135, 149344), (144, 140010), (156, 129240), (160, 126009), (180, 112008), (195, 103392), (208, 96930), (216, 93340), (234, 86160), (240, 84006), (260, 77544), (270, 74672), (288, 70005), (312, 64620), (351, 57440), (359, 56160), (360, 56004), (390, 51696), (416, 48465), (432, 46670), (468, 43080), (480, 42003), (520, 38772), (540, 37336), (585, 34464), (624, 32310), (702, 28720), (718, 28080), (720, 28002), (780, 25848), (864, 23335), (936, 21540), (1040, 19386), (1077, 18720), (1080, 18668), (1170, 17232), (1248, 16155), (1404, 14360), (1436, 14040), (1440, 14001), (1560, 12924), (1755, 11488), (1795, 11232), (1872, 10770), (2080, 9693), (2154, 9360), (2160, 9334), (2340, 8616), (2808, 7180), (2872, 7020), (3120, 6462), (3231, 6240), (3510, 5744), (3590, 5616), (3744, 5385), (4308, 4680), (4320, 4667)]