311908779

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1$

素因数の和:186

約数の個数: 128

約数和(自身を含む): 604692480

約数和(自身を除く): 292783701

約数列:

[1, 3, 7, 9, 13, 21, 27, 37, 39, 47, 63, 73, 91, 111, 117, 141, 189, 219, 259, 273, 329, 333, 351, 423, 481, 511, 611, 657, 777, 819, 949, 987, 999, 1269, 1443, 1533, 1739, 1833, 1971, 2331, 2457, 2701, 2847, 2961, 3367, 3431, 4277, 4329, 4599, 5217, 5499, 6643, 6993, 8103, 8541, 8883, 10101, 10293, 12173, 12831, 12987, 13797, 15651, 16497, 18907, 19929, 22607, 24017, 24309, 25623, 30303, 30879, 35113, 36519, 38493, 44603, 46953, 56721, 59787, 67821, 72051, 72927, 90909, 92637, 105339, 109557, 115479, 126947, 133809, 158249, 170163, 179361, 203463, 216153, 245791, 312221, 316017, 328671, 380841, 401427, 474747, 510489, 610389, 648459, 737373, 888629, 936663, 948051, 1142523, 1204281, 1424241, 1650311, 2212119, 2665887, 2809989, 3427569, 4272723, 4950933, 6636357, 7997661, 8429967, 11552177, 14852799, 23992983, 34656531, 44558397, 103969593, 311908779]

約数ペア:

[(1, 311908779), (3, 103969593), (7, 44558397), (9, 34656531), (13, 23992983), (21, 14852799), (27, 11552177), (37, 8429967), (39, 7997661), (47, 6636357), (63, 4950933), (73, 4272723), (91, 3427569), (111, 2809989), (117, 2665887), (141, 2212119), (189, 1650311), (219, 1424241), (259, 1204281), (273, 1142523), (329, 948051), (333, 936663), (351, 888629), (423, 737373), (481, 648459), (511, 610389), (611, 510489), (657, 474747), (777, 401427), (819, 380841), (949, 328671), (987, 316017), (999, 312221), (1269, 245791), (1443, 216153), (1533, 203463), (1739, 179361), (1833, 170163), (1971, 158249), (2331, 133809), (2457, 126947), (2701, 115479), (2847, 109557), (2961, 105339), (3367, 92637), (3431, 90909), (4277, 72927), (4329, 72051), (4599, 67821), (5217, 59787), (5499, 56721), (6643, 46953), (6993, 44603), (8103, 38493), (8541, 36519), (8883, 35113), (10101, 30879), (10293, 30303), (12173, 25623), (12831, 24309), (12987, 24017), (13797, 22607), (15651, 19929), (16497, 18907)]