639557776

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:261

約数の個数: 160

約数和(自身を含む): 1535901696

約数和(自身を除く): 896343920

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 31, 44, 52, 62, 71, 88, 104, 124, 127, 142, 143, 176, 208, 248, 254, 284, 286, 341, 403, 496, 508, 568, 572, 682, 781, 806, 923, 1016, 1136, 1144, 1364, 1397, 1562, 1612, 1651, 1846, 2032, 2201, 2288, 2728, 2794, 3124, 3224, 3302, 3692, 3937, 4402, 4433, 5456, 5588, 6248, 6448, 6604, 7384, 7874, 8804, 8866, 9017, 10153, 11176, 12496, 13208, 14768, 15748, 17608, 17732, 18034, 18161, 20306, 22352, 24211, 26416, 28613, 31496, 35216, 35464, 36068, 36322, 40612, 43307, 48422, 51181, 57226, 62992, 70928, 72136, 72644, 81224, 86614, 96844, 99187, 102362, 114452, 117221, 144272, 145288, 162448, 173228, 193688, 198374, 204724, 228904, 234442, 279527, 290576, 314743, 346456, 387376, 396748, 409448, 457808, 468884, 559054, 562991, 629486, 692912, 793496, 818896, 937768, 1118108, 1125982, 1258972, 1289431, 1586992, 1875536, 2236216, 2251964, 2517944, 2578862, 3074797, 3633851, 4472432, 4503928, 5035888, 5157724, 6149594, 7267702, 9007856, 10315448, 12299188, 14535404, 20630896, 24598376, 29070808, 39972361, 49196752, 58141616, 79944722, 159889444, 319778888, 639557776]

約数ペア:

[(1, 639557776), (2, 319778888), (4, 159889444), (8, 79944722), (11, 58141616), (13, 49196752), (16, 39972361), (22, 29070808), (26, 24598376), (31, 20630896), (44, 14535404), (52, 12299188), (62, 10315448), (71, 9007856), (88, 7267702), (104, 6149594), (124, 5157724), (127, 5035888), (142, 4503928), (143, 4472432), (176, 3633851), (208, 3074797), (248, 2578862), (254, 2517944), (284, 2251964), (286, 2236216), (341, 1875536), (403, 1586992), (496, 1289431), (508, 1258972), (568, 1125982), (572, 1118108), (682, 937768), (781, 818896), (806, 793496), (923, 692912), (1016, 629486), (1136, 562991), (1144, 559054), (1364, 468884), (1397, 457808), (1562, 409448), (1612, 396748), (1651, 387376), (1846, 346456), (2032, 314743), (2201, 290576), (2288, 279527), (2728, 234442), (2794, 228904), (3124, 204724), (3224, 198374), (3302, 193688), (3692, 173228), (3937, 162448), (4402, 145288), (4433, 144272), (5456, 117221), (5588, 114452), (6248, 102362), (6448, 99187), (6604, 96844), (7384, 86614), (7874, 81224), (8804, 72644), (8866, 72136), (9017, 70928), (10153, 62992), (11176, 57226), (12496, 51181), (13208, 48422), (14768, 43307), (15748, 40612), (17608, 36322), (17732, 36068), (18034, 35464), (18161, 35216), (20306, 31496), (22352, 28613), (24211, 26416)]