20540016

素因数分解:

$2^4\times 3^2\times 7^2\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:140

約数の個数: 180

約数和(自身を含む): 69464304

約数和(自身を除く): 48924288

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 41, 42, 48, 49, 56, 63, 71, 72, 82, 84, 98, 112, 123, 126, 142, 144, 147, 164, 168, 196, 213, 246, 252, 284, 287, 294, 328, 336, 369, 392, 426, 441, 492, 497, 504, 568, 574, 588, 639, 656, 738, 784, 852, 861, 882, 984, 994, 1008, 1136, 1148, 1176, 1278, 1476, 1491, 1704, 1722, 1764, 1968, 1988, 2009, 2296, 2352, 2556, 2583, 2911, 2952, 2982, 3408, 3444, 3479, 3528, 3976, 4018, 4473, 4592, 5112, 5166, 5822, 5904, 5964, 6027, 6888, 6958, 7056, 7952, 8036, 8733, 8946, 10224, 10332, 10437, 11644, 11928, 12054, 13776, 13916, 16072, 17466, 17892, 18081, 20377, 20664, 20874, 23288, 23856, 24108, 26199, 27832, 31311, 32144, 34932, 35784, 36162, 40754, 41328, 41748, 46576, 48216, 52398, 55664, 61131, 62622, 69864, 71568, 72324, 81508, 83496, 96432, 104796, 122262, 125244, 139728, 142639, 144648, 163016, 166992, 183393, 209592, 244524, 250488, 285278, 289296, 326032, 366786, 419184, 427917, 489048, 500976, 570556, 733572, 855834, 978096, 1141112, 1283751, 1467144, 1711668, 2282224, 2567502, 2934288, 3423336, 5135004, 6846672, 10270008, 20540016]

約数ペア:

[(1, 20540016), (2, 10270008), (3, 6846672), (4, 5135004), (6, 3423336), (7, 2934288), (8, 2567502), (9, 2282224), (12, 1711668), (14, 1467144), (16, 1283751), (18, 1141112), (21, 978096), (24, 855834), (28, 733572), (36, 570556), (41, 500976), (42, 489048), (48, 427917), (49, 419184), (56, 366786), (63, 326032), (71, 289296), (72, 285278), (82, 250488), (84, 244524), (98, 209592), (112, 183393), (123, 166992), (126, 163016), (142, 144648), (144, 142639), (147, 139728), (164, 125244), (168, 122262), (196, 104796), (213, 96432), (246, 83496), (252, 81508), (284, 72324), (287, 71568), (294, 69864), (328, 62622), (336, 61131), (369, 55664), (392, 52398), (426, 48216), (441, 46576), (492, 41748), (497, 41328), (504, 40754), (568, 36162), (574, 35784), (588, 34932), (639, 32144), (656, 31311), (738, 27832), (784, 26199), (852, 24108), (861, 23856), (882, 23288), (984, 20874), (994, 20664), (1008, 20377), (1136, 18081), (1148, 17892), (1176, 17466), (1278, 16072), (1476, 13916), (1491, 13776), (1704, 12054), (1722, 11928), (1764, 11644), (1968, 10437), (1988, 10332), (2009, 10224), (2296, 8946), (2352, 8733), (2556, 8036), (2583, 7952), (2911, 7056), (2952, 6958), (2982, 6888), (3408, 6027), (3444, 5964), (3479, 5904), (3528, 5822), (3976, 5166), (4018, 5112), (4473, 4592)]