257229258

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{509}}^1$

素因数の和:588

約数の個数: 128

約数和(自身を含む): 658022400

約数和(自身を除く): 400793142

約数列:

[1, 2, 3, 6, 11, 13, 19, 22, 26, 31, 33, 38, 39, 57, 62, 66, 78, 93, 114, 143, 186, 209, 247, 286, 341, 403, 418, 429, 494, 509, 589, 627, 682, 741, 806, 858, 1018, 1023, 1178, 1209, 1254, 1482, 1527, 1767, 2046, 2418, 2717, 3054, 3534, 4433, 5434, 5599, 6479, 6617, 7657, 8151, 8866, 9671, 11198, 12958, 13234, 13299, 15314, 15779, 16302, 16797, 19342, 19437, 19851, 22971, 26598, 29013, 31558, 33594, 38874, 39702, 45942, 47337, 58026, 72787, 84227, 94674, 106381, 125723, 145574, 168454, 173569, 205127, 212762, 218361, 251446, 252681, 299801, 319143, 347138, 377169, 410254, 436722, 505362, 520707, 599602, 615381, 638286, 754338, 899403, 1041414, 1230762, 1382953, 1798806, 2256397, 2765906, 3297811, 3897413, 4148859, 4512794, 6595622, 6769191, 7794826, 8297718, 9893433, 11692239, 13538382, 19786866, 23384478, 42871543, 85743086, 128614629, 257229258]

約数ペア:

[(1, 257229258), (2, 128614629), (3, 85743086), (6, 42871543), (11, 23384478), (13, 19786866), (19, 13538382), (22, 11692239), (26, 9893433), (31, 8297718), (33, 7794826), (38, 6769191), (39, 6595622), (57, 4512794), (62, 4148859), (66, 3897413), (78, 3297811), (93, 2765906), (114, 2256397), (143, 1798806), (186, 1382953), (209, 1230762), (247, 1041414), (286, 899403), (341, 754338), (403, 638286), (418, 615381), (429, 599602), (494, 520707), (509, 505362), (589, 436722), (627, 410254), (682, 377169), (741, 347138), (806, 319143), (858, 299801), (1018, 252681), (1023, 251446), (1178, 218361), (1209, 212762), (1254, 205127), (1482, 173569), (1527, 168454), (1767, 145574), (2046, 125723), (2418, 106381), (2717, 94674), (3054, 84227), (3534, 72787), (4433, 58026), (5434, 47337), (5599, 45942), (6479, 39702), (6617, 38874), (7657, 33594), (8151, 31558), (8866, 29013), (9671, 26598), (11198, 22971), (12958, 19851), (13234, 19437), (13299, 19342), (15314, 16797), (15779, 16302)]