19842480

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1$

素因数の和:184

約数の個数: 240

約数和(自身を含む): 79233024

約数和(自身を除く): 59390544

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 31, 35, 36, 40, 42, 45, 48, 56, 60, 62, 63, 70, 72, 80, 84, 90, 93, 105, 112, 120, 124, 126, 127, 140, 144, 155, 168, 180, 186, 210, 217, 240, 248, 252, 254, 279, 280, 310, 315, 336, 360, 372, 381, 420, 434, 465, 496, 504, 508, 558, 560, 620, 630, 635, 651, 720, 744, 762, 840, 868, 889, 930, 1008, 1016, 1085, 1116, 1143, 1240, 1260, 1270, 1302, 1395, 1488, 1524, 1680, 1736, 1778, 1860, 1905, 1953, 2032, 2170, 2232, 2286, 2480, 2520, 2540, 2604, 2667, 2790, 3048, 3255, 3472, 3556, 3720, 3810, 3906, 3937, 4340, 4445, 4464, 4572, 5040, 5080, 5208, 5334, 5580, 5715, 6096, 6510, 7112, 7440, 7620, 7812, 7874, 8001, 8680, 8890, 9144, 9765, 10160, 10416, 10668, 11160, 11430, 11811, 13020, 13335, 14224, 15240, 15624, 15748, 16002, 17360, 17780, 18288, 19530, 19685, 21336, 22320, 22860, 23622, 26040, 26670, 27559, 30480, 31248, 31496, 32004, 35433, 35560, 39060, 39370, 40005, 42672, 45720, 47244, 52080, 53340, 55118, 59055, 62992, 64008, 70866, 71120, 78120, 78740, 80010, 82677, 91440, 94488, 106680, 110236, 118110, 128016, 137795, 141732, 156240, 157480, 160020, 165354, 177165, 188976, 213360, 220472, 236220, 248031, 275590, 283464, 314960, 320040, 330708, 354330, 413385, 440944, 472440, 496062, 551180, 566928, 640080, 661416, 708660, 826770, 944880, 992124, 1102360, 1240155, 1322832, 1417320, 1653540, 1984248, 2204720, 2480310, 2834640, 3307080, 3968496, 4960620, 6614160, 9921240, 19842480]

約数ペア:

[(1, 19842480), (2, 9921240), (3, 6614160), (4, 4960620), (5, 3968496), (6, 3307080), (7, 2834640), (8, 2480310), (9, 2204720), (10, 1984248), (12, 1653540), (14, 1417320), (15, 1322832), (16, 1240155), (18, 1102360), (20, 992124), (21, 944880), (24, 826770), (28, 708660), (30, 661416), (31, 640080), (35, 566928), (36, 551180), (40, 496062), (42, 472440), (45, 440944), (48, 413385), (56, 354330), (60, 330708), (62, 320040), (63, 314960), (70, 283464), (72, 275590), (80, 248031), (84, 236220), (90, 220472), (93, 213360), (105, 188976), (112, 177165), (120, 165354), (124, 160020), (126, 157480), (127, 156240), (140, 141732), (144, 137795), (155, 128016), (168, 118110), (180, 110236), (186, 106680), (210, 94488), (217, 91440), (240, 82677), (248, 80010), (252, 78740), (254, 78120), (279, 71120), (280, 70866), (310, 64008), (315, 62992), (336, 59055), (360, 55118), (372, 53340), (381, 52080), (420, 47244), (434, 45720), (465, 42672), (496, 40005), (504, 39370), (508, 39060), (558, 35560), (560, 35433), (620, 32004), (630, 31496), (635, 31248), (651, 30480), (720, 27559), (744, 26670), (762, 26040), (840, 23622), (868, 22860), (889, 22320), (930, 21336), (1008, 19685), (1016, 19530), (1085, 18288), (1116, 17780), (1143, 17360), (1240, 16002), (1260, 15748), (1270, 15624), (1302, 15240), (1395, 14224), (1488, 13335), (1524, 13020), (1680, 11811), (1736, 11430), (1778, 11160), (1860, 10668), (1905, 10416), (1953, 10160), (2032, 9765), (2170, 9144), (2232, 8890), (2286, 8680), (2480, 8001), (2520, 7874), (2540, 7812), (2604, 7620), (2667, 7440), (2790, 7112), (3048, 6510), (3255, 6096), (3472, 5715), (3556, 5580), (3720, 5334), (3810, 5208), (3906, 5080), (3937, 5040), (4340, 4572), (4445, 4464)]