20427264

素因数分解:

$2^9\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1$

素因数の和:79

約数の個数: 240

約数和(自身を含む): 71495424

約数和(自身を除く): 51068160

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 13, 16, 18, 22, 24, 26, 31, 32, 33, 36, 39, 44, 48, 52, 62, 64, 66, 72, 78, 88, 93, 96, 99, 104, 117, 124, 128, 132, 143, 144, 156, 176, 186, 192, 198, 208, 234, 248, 256, 264, 279, 286, 288, 312, 341, 352, 372, 384, 396, 403, 416, 429, 468, 496, 512, 528, 558, 572, 576, 624, 682, 704, 744, 768, 792, 806, 832, 858, 936, 992, 1023, 1056, 1116, 1144, 1152, 1209, 1248, 1287, 1364, 1408, 1488, 1536, 1584, 1612, 1664, 1716, 1872, 1984, 2046, 2112, 2232, 2288, 2304, 2418, 2496, 2574, 2728, 2816, 2976, 3069, 3168, 3224, 3328, 3432, 3627, 3744, 3968, 4092, 4224, 4433, 4464, 4576, 4608, 4836, 4992, 5148, 5456, 5632, 5952, 6138, 6336, 6448, 6656, 6864, 7254, 7488, 7936, 8184, 8448, 8866, 8928, 9152, 9672, 9984, 10296, 10912, 11904, 12276, 12672, 12896, 13299, 13728, 14508, 14976, 15872, 16368, 16896, 17732, 17856, 18304, 19344, 19968, 20592, 21824, 23808, 24552, 25344, 25792, 26598, 27456, 29016, 29952, 32736, 35464, 35712, 36608, 38688, 39897, 41184, 43648, 47616, 49104, 50688, 51584, 53196, 54912, 58032, 59904, 65472, 70928, 71424, 73216, 77376, 79794, 82368, 87296, 98208, 103168, 106392, 109824, 116064, 130944, 141856, 142848, 154752, 159588, 164736, 174592, 196416, 206336, 212784, 219648, 232128, 261888, 283712, 309504, 319176, 329472, 392832, 425568, 464256, 523776, 567424, 619008, 638352, 658944, 785664, 851136, 928512, 1134848, 1276704, 1571328, 1702272, 1857024, 2269696, 2553408, 3404544, 5106816, 6809088, 10213632, 20427264]

約数ペア:

[(1, 20427264), (2, 10213632), (3, 6809088), (4, 5106816), (6, 3404544), (8, 2553408), (9, 2269696), (11, 1857024), (12, 1702272), (13, 1571328), (16, 1276704), (18, 1134848), (22, 928512), (24, 851136), (26, 785664), (31, 658944), (32, 638352), (33, 619008), (36, 567424), (39, 523776), (44, 464256), (48, 425568), (52, 392832), (62, 329472), (64, 319176), (66, 309504), (72, 283712), (78, 261888), (88, 232128), (93, 219648), (96, 212784), (99, 206336), (104, 196416), (117, 174592), (124, 164736), (128, 159588), (132, 154752), (143, 142848), (144, 141856), (156, 130944), (176, 116064), (186, 109824), (192, 106392), (198, 103168), (208, 98208), (234, 87296), (248, 82368), (256, 79794), (264, 77376), (279, 73216), (286, 71424), (288, 70928), (312, 65472), (341, 59904), (352, 58032), (372, 54912), (384, 53196), (396, 51584), (403, 50688), (416, 49104), (429, 47616), (468, 43648), (496, 41184), (512, 39897), (528, 38688), (558, 36608), (572, 35712), (576, 35464), (624, 32736), (682, 29952), (704, 29016), (744, 27456), (768, 26598), (792, 25792), (806, 25344), (832, 24552), (858, 23808), (936, 21824), (992, 20592), (1023, 19968), (1056, 19344), (1116, 18304), (1144, 17856), (1152, 17732), (1209, 16896), (1248, 16368), (1287, 15872), (1364, 14976), (1408, 14508), (1488, 13728), (1536, 13299), (1584, 12896), (1612, 12672), (1664, 12276), (1716, 11904), (1872, 10912), (1984, 10296), (2046, 9984), (2112, 9672), (2232, 9152), (2288, 8928), (2304, 8866), (2418, 8448), (2496, 8184), (2574, 7936), (2728, 7488), (2816, 7254), (2976, 6864), (3069, 6656), (3168, 6448), (3224, 6336), (3328, 6138), (3432, 5952), (3627, 5632), (3744, 5456), (3968, 5148), (4092, 4992), (4224, 4836), (4433, 4608), (4464, 4576)]