661459680

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{311}}^1$

素因数の和:550

約数の個数: 288

約数和(自身を含む): 2600252928

約数和(自身を除く): 1938793248

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, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 210, 211, 224, 240, 252, 280, 288, 311, 315, 336, 360, 420, 422, 480, 504, 560, 622, 630, 633, 672, 720, 840, 844, 933, 1008, 1055, 1120, 1244, 1260, 1266, 1440, 1477, 1555, 1680, 1688, 1866, 1899, 2016, 2110, 2177, 2488, 2520, 2532, 2799, 2954, 3110, 3165, 3360, 3376, 3732, 3798, 4220, 4354, 4431, 4665, 4976, 5040, 5064, 5598, 5908, 6220, 6330, 6531, 6752, 7385, 7464, 7596, 8440, 8708, 8862, 9330, 9495, 9952, 10080, 10128, 10885, 11196, 11816, 12440, 12660, 13062, 13293, 13995, 14770, 14928, 15192, 16880, 17416, 17724, 18660, 18990, 19593, 20256, 21770, 22155, 22392, 23632, 24880, 25320, 26124, 26586, 27990, 29540, 29856, 30384, 32655, 33760, 34832, 35448, 37320, 37980, 39186, 43540, 44310, 44784, 47264, 49760, 50640, 52248, 53172, 55980, 59080, 60768, 65310, 65621, 66465, 69664, 70896, 74640, 75960, 78372, 87080, 88620, 89568, 97965, 101280, 104496, 106344, 111960, 118160, 130620, 131242, 132930, 141792, 149280, 151920, 156744, 174160, 177240, 195930, 196863, 208992, 212688, 223920, 236320, 261240, 262484, 265860, 303840, 313488, 328105, 348320, 354480, 391860, 393726, 425376, 447840, 459347, 522480, 524968, 531720, 590589, 626976, 656210, 708960, 783720, 787452, 918694, 984315, 1044960, 1049936, 1063440, 1181178, 1312420, 1378041, 1567440, 1574904, 1837388, 1968630, 2099872, 2126880, 2296735, 2362356, 2624840, 2756082, 2952945, 3134880, 3149808, 3674776, 3937260, 4134123, 4593470, 4724712, 5249680, 5512164, 5905890, 6299616, 6890205, 7349552, 7874520, 8268246, 9186940, 9449424, 10499360, 11024328, 11811780, 13780410, 14699104, 15749040, 16536492, 18373880, 18898848, 20670615, 22048656, 23623560, 27560820, 31498080, 33072984, 36747760, 41341230, 44097312, 47247120, 55121640, 66145968, 73495520, 82682460, 94494240, 110243280, 132291936, 165364920, 220486560, 330729840, 661459680]

約数ペア:

[(1, 661459680), (2, 330729840), (3, 220486560), (4, 165364920), (5, 132291936), (6, 110243280), (7, 94494240), (8, 82682460), (9, 73495520), (10, 66145968), (12, 55121640), (14, 47247120), (15, 44097312), (16, 41341230), (18, 36747760), (20, 33072984), (21, 31498080), (24, 27560820), (28, 23623560), (30, 22048656), (32, 20670615), (35, 18898848), (36, 18373880), (40, 16536492), (42, 15749040), (45, 14699104), (48, 13780410), (56, 11811780), (60, 11024328), (63, 10499360), (70, 9449424), (72, 9186940), (80, 8268246), (84, 7874520), (90, 7349552), (96, 6890205), (105, 6299616), (112, 5905890), (120, 5512164), (126, 5249680), (140, 4724712), (144, 4593470), (160, 4134123), (168, 3937260), (180, 3674776), (210, 3149808), (211, 3134880), (224, 2952945), (240, 2756082), (252, 2624840), (280, 2362356), (288, 2296735), (311, 2126880), (315, 2099872), (336, 1968630), (360, 1837388), (420, 1574904), (422, 1567440), (480, 1378041), (504, 1312420), (560, 1181178), (622, 1063440), (630, 1049936), (633, 1044960), (672, 984315), (720, 918694), (840, 787452), (844, 783720), (933, 708960), (1008, 656210), (1055, 626976), (1120, 590589), (1244, 531720), (1260, 524968), (1266, 522480), (1440, 459347), (1477, 447840), (1555, 425376), (1680, 393726), (1688, 391860), (1866, 354480), (1899, 348320), (2016, 328105), (2110, 313488), (2177, 303840), (2488, 265860), (2520, 262484), (2532, 261240), (2799, 236320), (2954, 223920), (3110, 212688), (3165, 208992), (3360, 196863), (3376, 195930), (3732, 177240), (3798, 174160), (4220, 156744), (4354, 151920), (4431, 149280), (4665, 141792), (4976, 132930), (5040, 131242), (5064, 130620), (5598, 118160), (5908, 111960), (6220, 106344), (6330, 104496), (6531, 101280), (6752, 97965), (7385, 89568), (7464, 88620), (7596, 87080), (8440, 78372), (8708, 75960), (8862, 74640), (9330, 70896), (9495, 69664), (9952, 66465), (10080, 65621), (10128, 65310), (10885, 60768), (11196, 59080), (11816, 55980), (12440, 53172), (12660, 52248), (13062, 50640), (13293, 49760), (13995, 47264), (14770, 44784), (14928, 44310), (15192, 43540), (16880, 39186), (17416, 37980), (17724, 37320), (18660, 35448), (18990, 34832), (19593, 33760), (20256, 32655), (21770, 30384), (22155, 29856), (22392, 29540), (23632, 27990), (24880, 26586), (25320, 26124)]