15878940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{491}}^1$

素因数の和:528

約数の個数: 144

約数和(自身を含む): 56536704

約数和(自身を除く): 40657764

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 42, 44, 49, 55, 60, 66, 70, 77, 84, 98, 105, 110, 132, 140, 147, 154, 165, 196, 210, 220, 231, 245, 294, 308, 330, 385, 420, 462, 490, 491, 539, 588, 660, 735, 770, 924, 980, 982, 1078, 1155, 1470, 1473, 1540, 1617, 1964, 2156, 2310, 2455, 2695, 2940, 2946, 3234, 3437, 4620, 4910, 5390, 5401, 5892, 6468, 6874, 7365, 8085, 9820, 10311, 10780, 10802, 13748, 14730, 16170, 16203, 17185, 20622, 21604, 24059, 27005, 29460, 32340, 32406, 34370, 37807, 41244, 48118, 51555, 54010, 64812, 68740, 72177, 75614, 81015, 96236, 103110, 108020, 113421, 120295, 144354, 151228, 162030, 189035, 206220, 226842, 240590, 264649, 288708, 324060, 360885, 378070, 453684, 481180, 529298, 567105, 721770, 756140, 793947, 1058596, 1134210, 1323245, 1443540, 1587894, 2268420, 2646490, 3175788, 3969735, 5292980, 7939470, 15878940]

約数ペア:

[(1, 15878940), (2, 7939470), (3, 5292980), (4, 3969735), (5, 3175788), (6, 2646490), (7, 2268420), (10, 1587894), (11, 1443540), (12, 1323245), (14, 1134210), (15, 1058596), (20, 793947), (21, 756140), (22, 721770), (28, 567105), (30, 529298), (33, 481180), (35, 453684), (42, 378070), (44, 360885), (49, 324060), (55, 288708), (60, 264649), (66, 240590), (70, 226842), (77, 206220), (84, 189035), (98, 162030), (105, 151228), (110, 144354), (132, 120295), (140, 113421), (147, 108020), (154, 103110), (165, 96236), (196, 81015), (210, 75614), (220, 72177), (231, 68740), (245, 64812), (294, 54010), (308, 51555), (330, 48118), (385, 41244), (420, 37807), (462, 34370), (490, 32406), (491, 32340), (539, 29460), (588, 27005), (660, 24059), (735, 21604), (770, 20622), (924, 17185), (980, 16203), (982, 16170), (1078, 14730), (1155, 13748), (1470, 10802), (1473, 10780), (1540, 10311), (1617, 9820), (1964, 8085), (2156, 7365), (2310, 6874), (2455, 6468), (2695, 5892), (2940, 5401), (2946, 5390), (3234, 4910), (3437, 4620)]