640776136

素因数分解:

$2^3\times 7^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1$

素因数の和:145

約数の個数: 256

約数和(自身を含む): 1741824000

約数和(自身を除く): 1101047864

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 22, 23, 26, 28, 44, 46, 49, 52, 56, 71, 77, 88, 91, 92, 98, 104, 142, 143, 154, 161, 182, 184, 196, 253, 284, 286, 299, 308, 322, 343, 364, 392, 497, 506, 539, 568, 572, 598, 616, 637, 644, 686, 728, 781, 923, 994, 1001, 1012, 1078, 1127, 1144, 1196, 1274, 1288, 1372, 1562, 1633, 1771, 1846, 1988, 2002, 2024, 2093, 2156, 2254, 2392, 2548, 2744, 3124, 3266, 3289, 3479, 3542, 3692, 3773, 3976, 4004, 4186, 4312, 4459, 4508, 5096, 5467, 6248, 6461, 6532, 6578, 6958, 7007, 7084, 7384, 7546, 7889, 8008, 8372, 8918, 9016, 10153, 10934, 11431, 12397, 12922, 13064, 13156, 13916, 14014, 14168, 14651, 15092, 15778, 16744, 17836, 17963, 20306, 21229, 21868, 22862, 23023, 24353, 24794, 25844, 26312, 27832, 28028, 29302, 30184, 31556, 35672, 35926, 38269, 40612, 42458, 43736, 45227, 45724, 46046, 48706, 49049, 49588, 51688, 56056, 58604, 63112, 71071, 71852, 76538, 80017, 81224, 84916, 86779, 90454, 91448, 92092, 97412, 98098, 99176, 102557, 117208, 125741, 142142, 143704, 148603, 153076, 160034, 161161, 169832, 173558, 180908, 184184, 194824, 196196, 205114, 233519, 251482, 267883, 284284, 297206, 306152, 316589, 320068, 322322, 347116, 361816, 392392, 410228, 467038, 497497, 502964, 535766, 560119, 568568, 594412, 633178, 640136, 644644, 694232, 820456, 880187, 934076, 994994, 1005928, 1040221, 1071532, 1120238, 1128127, 1188824, 1266356, 1289288, 1634633, 1760374, 1868152, 1989988, 2080442, 2143064, 2240476, 2256254, 2532712, 3269266, 3482479, 3520748, 3979976, 4160884, 4480952, 4512508, 6161309, 6538532, 6964958, 7041496, 7281547, 8321768, 9025016, 11442431, 12322618, 13077064, 13929916, 14563094, 22884862, 24645236, 27859832, 29126188, 45769724, 49290472, 58252376, 80097017, 91539448, 160194034, 320388068, 640776136]

約数ペア:

[(1, 640776136), (2, 320388068), (4, 160194034), (7, 91539448), (8, 80097017), (11, 58252376), (13, 49290472), (14, 45769724), (22, 29126188), (23, 27859832), (26, 24645236), (28, 22884862), (44, 14563094), (46, 13929916), (49, 13077064), (52, 12322618), (56, 11442431), (71, 9025016), (77, 8321768), (88, 7281547), (91, 7041496), (92, 6964958), (98, 6538532), (104, 6161309), (142, 4512508), (143, 4480952), (154, 4160884), (161, 3979976), (182, 3520748), (184, 3482479), (196, 3269266), (253, 2532712), (284, 2256254), (286, 2240476), (299, 2143064), (308, 2080442), (322, 1989988), (343, 1868152), (364, 1760374), (392, 1634633), (497, 1289288), (506, 1266356), (539, 1188824), (568, 1128127), (572, 1120238), (598, 1071532), (616, 1040221), (637, 1005928), (644, 994994), (686, 934076), (728, 880187), (781, 820456), (923, 694232), (994, 644644), (1001, 640136), (1012, 633178), (1078, 594412), (1127, 568568), (1144, 560119), (1196, 535766), (1274, 502964), (1288, 497497), (1372, 467038), (1562, 410228), (1633, 392392), (1771, 361816), (1846, 347116), (1988, 322322), (2002, 320068), (2024, 316589), (2093, 306152), (2156, 297206), (2254, 284284), (2392, 267883), (2548, 251482), (2744, 233519), (3124, 205114), (3266, 196196), (3289, 194824), (3479, 184184), (3542, 180908), (3692, 173558), (3773, 169832), (3976, 161161), (4004, 160034), (4186, 153076), (4312, 148603), (4459, 143704), (4508, 142142), (5096, 125741), (5467, 117208), (6248, 102557), (6461, 99176), (6532, 98098), (6578, 97412), (6958, 92092), (7007, 91448), (7084, 90454), (7384, 86779), (7546, 84916), (7889, 81224), (8008, 80017), (8372, 76538), (8918, 71852), (9016, 71071), (10153, 63112), (10934, 58604), (11431, 56056), (12397, 51688), (12922, 49588), (13064, 49049), (13156, 48706), (13916, 46046), (14014, 45724), (14168, 45227), (14651, 43736), (15092, 42458), (15778, 40612), (16744, 38269), (17836, 35926), (17963, 35672), (20306, 31556), (21229, 30184), (21868, 29302), (22862, 28028), (23023, 27832), (24353, 26312), (24794, 25844)]