398932128

素因数分解:

$2^5\times 3^6\times 7^2\times {\mathrm{349}}^1$

素因数の和:391

約数の個数: 252

約数和(自身を含む): 1373737050

約数和(自身を除く): 974804922

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 32, 36, 42, 48, 49, 54, 56, 63, 72, 81, 84, 96, 98, 108, 112, 126, 144, 147, 162, 168, 189, 196, 216, 224, 243, 252, 288, 294, 324, 336, 349, 378, 392, 432, 441, 486, 504, 567, 588, 648, 672, 698, 729, 756, 784, 864, 882, 972, 1008, 1047, 1134, 1176, 1296, 1323, 1396, 1458, 1512, 1568, 1701, 1764, 1944, 2016, 2094, 2268, 2352, 2443, 2592, 2646, 2792, 2916, 3024, 3141, 3402, 3528, 3888, 3969, 4188, 4536, 4704, 4886, 5103, 5292, 5584, 5832, 6048, 6282, 6804, 7056, 7329, 7776, 7938, 8376, 9072, 9423, 9772, 10206, 10584, 11168, 11664, 11907, 12564, 13608, 14112, 14658, 15876, 16752, 17101, 18144, 18846, 19544, 20412, 21168, 21987, 23328, 23814, 25128, 27216, 28269, 29316, 31752, 33504, 34202, 35721, 37692, 39088, 40824, 42336, 43974, 47628, 50256, 51303, 54432, 56538, 58632, 63504, 65961, 68404, 71442, 75384, 78176, 81648, 84807, 87948, 95256, 100512, 102606, 113076, 117264, 127008, 131922, 136808, 142884, 150768, 153909, 163296, 169614, 175896, 190512, 197883, 205212, 226152, 234528, 254421, 263844, 273616, 285768, 301536, 307818, 339228, 351792, 381024, 395766, 410424, 452304, 461727, 508842, 527688, 547232, 571536, 593649, 615636, 678456, 703584, 791532, 820848, 904608, 923454, 1017684, 1055376, 1143072, 1187298, 1231272, 1356912, 1385181, 1583064, 1641696, 1780947, 1846908, 2035368, 2110752, 2374596, 2462544, 2713824, 2770362, 3166128, 3561894, 3693816, 4070736, 4155543, 4749192, 4925088, 5540724, 6332256, 7123788, 7387632, 8141472, 8311086, 9498384, 11081448, 12466629, 14247576, 14775264, 16622172, 18996768, 22162896, 24933258, 28495152, 33244344, 44325792, 49866516, 56990304, 66488688, 99733032, 132977376, 199466064, 398932128]

約数ペア:

[(1, 398932128), (2, 199466064), (3, 132977376), (4, 99733032), (6, 66488688), (7, 56990304), (8, 49866516), (9, 44325792), (12, 33244344), (14, 28495152), (16, 24933258), (18, 22162896), (21, 18996768), (24, 16622172), (27, 14775264), (28, 14247576), (32, 12466629), (36, 11081448), (42, 9498384), (48, 8311086), (49, 8141472), (54, 7387632), (56, 7123788), (63, 6332256), (72, 5540724), (81, 4925088), (84, 4749192), (96, 4155543), (98, 4070736), (108, 3693816), (112, 3561894), (126, 3166128), (144, 2770362), (147, 2713824), (162, 2462544), (168, 2374596), (189, 2110752), (196, 2035368), (216, 1846908), (224, 1780947), (243, 1641696), (252, 1583064), (288, 1385181), (294, 1356912), (324, 1231272), (336, 1187298), (349, 1143072), (378, 1055376), (392, 1017684), (432, 923454), (441, 904608), (486, 820848), (504, 791532), (567, 703584), (588, 678456), (648, 615636), (672, 593649), (698, 571536), (729, 547232), (756, 527688), (784, 508842), (864, 461727), (882, 452304), (972, 410424), (1008, 395766), (1047, 381024), (1134, 351792), (1176, 339228), (1296, 307818), (1323, 301536), (1396, 285768), (1458, 273616), (1512, 263844), (1568, 254421), (1701, 234528), (1764, 226152), (1944, 205212), (2016, 197883), (2094, 190512), (2268, 175896), (2352, 169614), (2443, 163296), (2592, 153909), (2646, 150768), (2792, 142884), (2916, 136808), (3024, 131922), (3141, 127008), (3402, 117264), (3528, 113076), (3888, 102606), (3969, 100512), (4188, 95256), (4536, 87948), (4704, 84807), (4886, 81648), (5103, 78176), (5292, 75384), (5584, 71442), (5832, 68404), (6048, 65961), (6282, 63504), (6804, 58632), (7056, 56538), (7329, 54432), (7776, 51303), (7938, 50256), (8376, 47628), (9072, 43974), (9423, 42336), (9772, 40824), (10206, 39088), (10584, 37692), (11168, 35721), (11664, 34202), (11907, 33504), (12564, 31752), (13608, 29316), (14112, 28269), (14658, 27216), (15876, 25128), (16752, 23814), (17101, 23328), (18144, 21987), (18846, 21168), (19544, 20412)]