640921248

素因数分解:

$2^5\times 3^5\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{127}}^1$

素因数の和:222

約数の個数: 288

約数和(自身を含む): 2113413120

約数和(自身を除く): 1472491872

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 27, 32, 33, 36, 44, 48, 54, 59, 66, 72, 81, 88, 96, 99, 108, 118, 127, 132, 144, 162, 176, 177, 198, 216, 236, 243, 254, 264, 288, 297, 324, 352, 354, 381, 396, 432, 472, 486, 508, 528, 531, 594, 648, 649, 708, 762, 792, 864, 891, 944, 972, 1016, 1056, 1062, 1143, 1188, 1296, 1298, 1397, 1416, 1524, 1584, 1593, 1782, 1888, 1944, 1947, 2032, 2124, 2286, 2376, 2592, 2596, 2673, 2794, 2832, 3048, 3168, 3186, 3429, 3564, 3888, 3894, 4064, 4191, 4248, 4572, 4752, 4779, 5192, 5346, 5588, 5664, 5841, 6096, 6372, 6858, 7128, 7493, 7776, 7788, 8382, 8496, 9144, 9504, 9558, 10287, 10384, 10692, 11176, 11682, 12192, 12573, 12744, 13716, 14256, 14337, 14986, 15576, 16764, 16992, 17523, 18288, 19116, 20574, 20768, 21384, 22352, 22479, 23364, 25146, 25488, 27432, 28512, 28674, 29972, 30861, 31152, 33528, 35046, 36576, 37719, 38232, 41148, 42768, 44704, 44958, 46728, 50292, 50976, 52569, 54864, 57348, 59944, 61722, 62304, 67056, 67437, 70092, 75438, 76464, 82296, 82423, 85536, 89916, 93456, 100584, 105138, 109728, 113157, 114696, 119888, 123444, 134112, 134874, 140184, 150876, 152928, 157707, 164592, 164846, 179832, 186912, 201168, 202311, 210276, 226314, 229392, 239776, 246888, 247269, 269748, 280368, 301752, 315414, 329184, 329692, 339471, 359664, 402336, 404622, 420552, 452628, 458784, 493776, 494538, 539496, 560736, 603504, 606933, 630828, 659384, 678942, 719328, 741807, 809244, 841104, 905256, 987552, 989076, 1078992, 1207008, 1213866, 1261656, 1318768, 1357884, 1483614, 1618488, 1682208, 1810512, 1820799, 1978152, 2157984, 2225421, 2427732, 2523312, 2637536, 2715768, 2967228, 3236976, 3621024, 3641598, 3956304, 4450842, 4855464, 5046624, 5431536, 5934456, 6473952, 6676263, 7283196, 7912608, 8901684, 9710928, 10863072, 11868912, 13352526, 14566392, 17803368, 19421856, 20028789, 23737824, 26705052, 29132784, 35606736, 40057578, 53410104, 58265568, 71213472, 80115156, 106820208, 160230312, 213640416, 320460624, 640921248]

約数ペア:

[(1, 640921248), (2, 320460624), (3, 213640416), (4, 160230312), (6, 106820208), (8, 80115156), (9, 71213472), (11, 58265568), (12, 53410104), (16, 40057578), (18, 35606736), (22, 29132784), (24, 26705052), (27, 23737824), (32, 20028789), (33, 19421856), (36, 17803368), (44, 14566392), (48, 13352526), (54, 11868912), (59, 10863072), (66, 9710928), (72, 8901684), (81, 7912608), (88, 7283196), (96, 6676263), (99, 6473952), (108, 5934456), (118, 5431536), (127, 5046624), (132, 4855464), (144, 4450842), (162, 3956304), (176, 3641598), (177, 3621024), (198, 3236976), (216, 2967228), (236, 2715768), (243, 2637536), (254, 2523312), (264, 2427732), (288, 2225421), (297, 2157984), (324, 1978152), (352, 1820799), (354, 1810512), (381, 1682208), (396, 1618488), (432, 1483614), (472, 1357884), (486, 1318768), (508, 1261656), (528, 1213866), (531, 1207008), (594, 1078992), (648, 989076), (649, 987552), (708, 905256), (762, 841104), (792, 809244), (864, 741807), (891, 719328), (944, 678942), (972, 659384), (1016, 630828), (1056, 606933), (1062, 603504), (1143, 560736), (1188, 539496), (1296, 494538), (1298, 493776), (1397, 458784), (1416, 452628), (1524, 420552), (1584, 404622), (1593, 402336), (1782, 359664), (1888, 339471), (1944, 329692), (1947, 329184), (2032, 315414), (2124, 301752), (2286, 280368), (2376, 269748), (2592, 247269), (2596, 246888), (2673, 239776), (2794, 229392), (2832, 226314), (3048, 210276), (3168, 202311), (3186, 201168), (3429, 186912), (3564, 179832), (3888, 164846), (3894, 164592), (4064, 157707), (4191, 152928), (4248, 150876), (4572, 140184), (4752, 134874), (4779, 134112), (5192, 123444), (5346, 119888), (5588, 114696), (5664, 113157), (5841, 109728), (6096, 105138), (6372, 100584), (6858, 93456), (7128, 89916), (7493, 85536), (7776, 82423), (7788, 82296), (8382, 76464), (8496, 75438), (9144, 70092), (9504, 67437), (9558, 67056), (10287, 62304), (10384, 61722), (10692, 59944), (11176, 57348), (11682, 54864), (12192, 52569), (12573, 50976), (12744, 50292), (13716, 46728), (14256, 44958), (14337, 44704), (14986, 42768), (15576, 41148), (16764, 38232), (16992, 37719), (17523, 36576), (18288, 35046), (19116, 33528), (20574, 31152), (20768, 30861), (21384, 29972), (22352, 28674), (22479, 28512), (23364, 27432), (25146, 25488)]