12991860

素因数分解:

$2^2\times 3^3\times 5^1\times 7^2\times {\mathrm{491}}^1$

素因数の和:523

約数の個数: 144

約数和(自身を含む): 47113920

約数和(自身を除く): 34122060

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 49, 54, 60, 63, 70, 84, 90, 98, 105, 108, 126, 135, 140, 147, 180, 189, 196, 210, 245, 252, 270, 294, 315, 378, 420, 441, 490, 491, 540, 588, 630, 735, 756, 882, 945, 980, 982, 1260, 1323, 1470, 1473, 1764, 1890, 1964, 2205, 2455, 2646, 2940, 2946, 3437, 3780, 4410, 4419, 4910, 5292, 5892, 6615, 6874, 7365, 8820, 8838, 9820, 10311, 13230, 13257, 13748, 14730, 17185, 17676, 20622, 22095, 24059, 26460, 26514, 29460, 30933, 34370, 41244, 44190, 48118, 51555, 53028, 61866, 66285, 68740, 72177, 88380, 92799, 96236, 103110, 120295, 123732, 132570, 144354, 154665, 185598, 206220, 216531, 240590, 265140, 288708, 309330, 360885, 371196, 433062, 463995, 481180, 618660, 649593, 721770, 866124, 927990, 1082655, 1299186, 1443540, 1855980, 2165310, 2598372, 3247965, 4330620, 6495930, 12991860]

約数ペア:

[(1, 12991860), (2, 6495930), (3, 4330620), (4, 3247965), (5, 2598372), (6, 2165310), (7, 1855980), (9, 1443540), (10, 1299186), (12, 1082655), (14, 927990), (15, 866124), (18, 721770), (20, 649593), (21, 618660), (27, 481180), (28, 463995), (30, 433062), (35, 371196), (36, 360885), (42, 309330), (45, 288708), (49, 265140), (54, 240590), (60, 216531), (63, 206220), (70, 185598), (84, 154665), (90, 144354), (98, 132570), (105, 123732), (108, 120295), (126, 103110), (135, 96236), (140, 92799), (147, 88380), (180, 72177), (189, 68740), (196, 66285), (210, 61866), (245, 53028), (252, 51555), (270, 48118), (294, 44190), (315, 41244), (378, 34370), (420, 30933), (441, 29460), (490, 26514), (491, 26460), (540, 24059), (588, 22095), (630, 20622), (735, 17676), (756, 17185), (882, 14730), (945, 13748), (980, 13257), (982, 13230), (1260, 10311), (1323, 9820), (1470, 8838), (1473, 8820), (1764, 7365), (1890, 6874), (1964, 6615), (2205, 5892), (2455, 5292), (2646, 4910), (2940, 4419), (2946, 4410), (3437, 3780)]