123459840

素因数分解:

$2^8\times 3^2\times 5^1\times 7^1\times {\mathrm{1531}}^1$

素因数の和:1565

約数の個数: 216

約数和(自身を含む): 488499648

約数和(自身を除く): 365039808

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 128, 140, 144, 160, 168, 180, 192, 210, 224, 240, 252, 256, 280, 288, 315, 320, 336, 360, 384, 420, 448, 480, 504, 560, 576, 630, 640, 672, 720, 768, 840, 896, 960, 1008, 1120, 1152, 1260, 1280, 1344, 1440, 1531, 1680, 1792, 1920, 2016, 2240, 2304, 2520, 2688, 2880, 3062, 3360, 3840, 4032, 4480, 4593, 5040, 5376, 5760, 6124, 6720, 7655, 8064, 8960, 9186, 10080, 10717, 11520, 12248, 13440, 13779, 15310, 16128, 18372, 20160, 21434, 22965, 24496, 26880, 27558, 30620, 32151, 36744, 40320, 42868, 45930, 48992, 53585, 55116, 61240, 64302, 68895, 73488, 80640, 85736, 91860, 96453, 97984, 107170, 110232, 122480, 128604, 137790, 146976, 160755, 171472, 183720, 192906, 195968, 214340, 220464, 244960, 257208, 275580, 293952, 321510, 342944, 367440, 385812, 391936, 428680, 440928, 482265, 489920, 514416, 551160, 587904, 643020, 685888, 734880, 771624, 857360, 881856, 964530, 979840, 1028832, 1102320, 1175808, 1286040, 1371776, 1469760, 1543248, 1714720, 1763712, 1929060, 1959680, 2057664, 2204640, 2572080, 2743552, 2939520, 3086496, 3429440, 3527424, 3858120, 4115328, 4409280, 5144160, 5879040, 6172992, 6858880, 7716240, 8230656, 8818560, 10288320, 12345984, 13717760, 15432480, 17637120, 20576640, 24691968, 30864960, 41153280, 61729920, 123459840]

約数ペア:

[(1, 123459840), (2, 61729920), (3, 41153280), (4, 30864960), (5, 24691968), (6, 20576640), (7, 17637120), (8, 15432480), (9, 13717760), (10, 12345984), (12, 10288320), (14, 8818560), (15, 8230656), (16, 7716240), (18, 6858880), (20, 6172992), (21, 5879040), (24, 5144160), (28, 4409280), (30, 4115328), (32, 3858120), (35, 3527424), (36, 3429440), (40, 3086496), (42, 2939520), (45, 2743552), (48, 2572080), (56, 2204640), (60, 2057664), (63, 1959680), (64, 1929060), (70, 1763712), (72, 1714720), (80, 1543248), (84, 1469760), (90, 1371776), (96, 1286040), (105, 1175808), (112, 1102320), (120, 1028832), (126, 979840), (128, 964530), (140, 881856), (144, 857360), (160, 771624), (168, 734880), (180, 685888), (192, 643020), (210, 587904), (224, 551160), (240, 514416), (252, 489920), (256, 482265), (280, 440928), (288, 428680), (315, 391936), (320, 385812), (336, 367440), (360, 342944), (384, 321510), (420, 293952), (448, 275580), (480, 257208), (504, 244960), (560, 220464), (576, 214340), (630, 195968), (640, 192906), (672, 183720), (720, 171472), (768, 160755), (840, 146976), (896, 137790), (960, 128604), (1008, 122480), (1120, 110232), (1152, 107170), (1260, 97984), (1280, 96453), (1344, 91860), (1440, 85736), (1531, 80640), (1680, 73488), (1792, 68895), (1920, 64302), (2016, 61240), (2240, 55116), (2304, 53585), (2520, 48992), (2688, 45930), (2880, 42868), (3062, 40320), (3360, 36744), (3840, 32151), (4032, 30620), (4480, 27558), (4593, 26880), (5040, 24496), (5376, 22965), (5760, 21434), (6124, 20160), (6720, 18372), (7655, 16128), (8064, 15310), (8960, 13779), (9186, 13440), (10080, 12248), (10717, 11520)]