20178707934

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{87881}}^1$

素因数の和:87982

約数の個数: 96

約数和(自身を含む): 51936152832

約数和(自身を除く): 31757444898

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 49, 66, 71, 77, 98, 142, 147, 154, 213, 231, 294, 426, 462, 497, 539, 781, 994, 1078, 1491, 1562, 1617, 2343, 2982, 3234, 3479, 4686, 5467, 6958, 10437, 10934, 16401, 20874, 32802, 38269, 76538, 87881, 114807, 175762, 229614, 263643, 527286, 615167, 966691, 1230334, 1845501, 1933382, 2900073, 3691002, 4306169, 5800146, 6239551, 6766837, 8612338, 12479102, 12918507, 13533674, 18718653, 20300511, 25837014, 37437306, 40601022, 43676857, 47367859, 68635061, 87353714, 94735718, 131030571, 137270122, 142103577, 205905183, 262061142, 284207154, 305737999, 411810366, 480445427, 611475998, 917213997, 960890854, 1441336281, 1834427994, 2882672562, 3363117989, 6726235978, 10089353967, 20178707934]

約数ペア:

[(1, 20178707934), (2, 10089353967), (3, 6726235978), (6, 3363117989), (7, 2882672562), (11, 1834427994), (14, 1441336281), (21, 960890854), (22, 917213997), (33, 611475998), (42, 480445427), (49, 411810366), (66, 305737999), (71, 284207154), (77, 262061142), (98, 205905183), (142, 142103577), (147, 137270122), (154, 131030571), (213, 94735718), (231, 87353714), (294, 68635061), (426, 47367859), (462, 43676857), (497, 40601022), (539, 37437306), (781, 25837014), (994, 20300511), (1078, 18718653), (1491, 13533674), (1562, 12918507), (1617, 12479102), (2343, 8612338), (2982, 6766837), (3234, 6239551), (3479, 5800146), (4686, 4306169), (5467, 3691002), (6958, 2900073), (10437, 1933382), (10934, 1845501), (16401, 1230334), (20874, 966691), (32802, 615167), (38269, 527286), (76538, 263643), (87881, 229614), (114807, 175762)]