641271456

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{31}}^2\times {\mathrm{331}}^1$

素因数の和:416

約数の個数: 216

約数和(自身を含む): 2160037152

約数和(自身を除く): 1518765696

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 31, 32, 36, 42, 48, 56, 62, 63, 72, 84, 93, 96, 112, 124, 126, 144, 168, 186, 217, 224, 248, 252, 279, 288, 331, 336, 372, 434, 496, 504, 558, 651, 662, 672, 744, 868, 961, 992, 993, 1008, 1116, 1302, 1324, 1488, 1736, 1922, 1953, 1986, 2016, 2232, 2317, 2604, 2648, 2883, 2976, 2979, 3472, 3844, 3906, 3972, 4464, 4634, 5208, 5296, 5766, 5958, 6727, 6944, 6951, 7688, 7812, 7944, 8649, 8928, 9268, 10261, 10416, 10592, 11532, 11916, 13454, 13902, 15376, 15624, 15888, 17298, 18536, 20181, 20522, 20832, 20853, 23064, 23832, 26908, 27804, 30752, 30783, 31248, 31776, 34596, 37072, 40362, 41044, 41706, 46128, 47664, 53816, 55608, 60543, 61566, 62496, 69192, 71827, 74144, 80724, 82088, 83412, 92256, 92349, 95328, 107632, 111216, 121086, 123132, 138384, 143654, 161448, 164176, 166824, 184698, 215264, 215481, 222432, 242172, 246264, 276768, 287308, 318091, 322896, 328352, 333648, 369396, 430962, 484344, 492528, 574616, 636182, 645792, 646443, 667296, 738792, 861924, 954273, 968688, 985056, 1149232, 1272364, 1292886, 1477584, 1723848, 1908546, 1937376, 2226637, 2298464, 2544728, 2585772, 2862819, 2955168, 3447696, 3817092, 4453274, 5089456, 5171544, 5725638, 6679911, 6895392, 7634184, 8906548, 10178912, 10343088, 11451276, 13359822, 15268368, 17813096, 20039733, 20686176, 22902552, 26719644, 30536736, 35626192, 40079466, 45805104, 53439288, 71252384, 80158932, 91610208, 106878576, 160317864, 213757152, 320635728, 641271456]

約数ペア:

[(1, 641271456), (2, 320635728), (3, 213757152), (4, 160317864), (6, 106878576), (7, 91610208), (8, 80158932), (9, 71252384), (12, 53439288), (14, 45805104), (16, 40079466), (18, 35626192), (21, 30536736), (24, 26719644), (28, 22902552), (31, 20686176), (32, 20039733), (36, 17813096), (42, 15268368), (48, 13359822), (56, 11451276), (62, 10343088), (63, 10178912), (72, 8906548), (84, 7634184), (93, 6895392), (96, 6679911), (112, 5725638), (124, 5171544), (126, 5089456), (144, 4453274), (168, 3817092), (186, 3447696), (217, 2955168), (224, 2862819), (248, 2585772), (252, 2544728), (279, 2298464), (288, 2226637), (331, 1937376), (336, 1908546), (372, 1723848), (434, 1477584), (496, 1292886), (504, 1272364), (558, 1149232), (651, 985056), (662, 968688), (672, 954273), (744, 861924), (868, 738792), (961, 667296), (992, 646443), (993, 645792), (1008, 636182), (1116, 574616), (1302, 492528), (1324, 484344), (1488, 430962), (1736, 369396), (1922, 333648), (1953, 328352), (1986, 322896), (2016, 318091), (2232, 287308), (2317, 276768), (2604, 246264), (2648, 242172), (2883, 222432), (2976, 215481), (2979, 215264), (3472, 184698), (3844, 166824), (3906, 164176), (3972, 161448), (4464, 143654), (4634, 138384), (5208, 123132), (5296, 121086), (5766, 111216), (5958, 107632), (6727, 95328), (6944, 92349), (6951, 92256), (7688, 83412), (7812, 82088), (7944, 80724), (8649, 74144), (8928, 71827), (9268, 69192), (10261, 62496), (10416, 61566), (10592, 60543), (11532, 55608), (11916, 53816), (13454, 47664), (13902, 46128), (15376, 41706), (15624, 41044), (15888, 40362), (17298, 37072), (18536, 34596), (20181, 31776), (20522, 31248), (20832, 30783), (20853, 30752), (23064, 27804), (23832, 26908)]