991408488

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{349}}^1\times {\mathrm{457}}^1$

素因数の和:859

約数の個数: 128

約数和(自身を含む): 2923872000

約数和(自身を除く): 1932463512

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 37, 42, 56, 74, 84, 111, 148, 168, 222, 259, 296, 349, 444, 457, 518, 698, 777, 888, 914, 1036, 1047, 1371, 1396, 1554, 1828, 2072, 2094, 2443, 2742, 2792, 3108, 3199, 3656, 4188, 4886, 5484, 6216, 6398, 7329, 8376, 9597, 9772, 10968, 12796, 12913, 14658, 16909, 19194, 19544, 25592, 25826, 29316, 33818, 38388, 38739, 50727, 51652, 58632, 67636, 76776, 77478, 90391, 101454, 103304, 118363, 135272, 154956, 159493, 180782, 202908, 236726, 271173, 309912, 318986, 355089, 361564, 405816, 473452, 478479, 542346, 637972, 710178, 723128, 946904, 956958, 1084692, 1116451, 1275944, 1420356, 1913916, 2169384, 2232902, 2840712, 3349353, 3827832, 4465804, 5901241, 6698706, 8931608, 11802482, 13397412, 17703723, 23604964, 26794824, 35407446, 41308687, 47209928, 70814892, 82617374, 123926061, 141629784, 165234748, 247852122, 330469496, 495704244, 991408488]

約数ペア:

[(1, 991408488), (2, 495704244), (3, 330469496), (4, 247852122), (6, 165234748), (7, 141629784), (8, 123926061), (12, 82617374), (14, 70814892), (21, 47209928), (24, 41308687), (28, 35407446), (37, 26794824), (42, 23604964), (56, 17703723), (74, 13397412), (84, 11802482), (111, 8931608), (148, 6698706), (168, 5901241), (222, 4465804), (259, 3827832), (296, 3349353), (349, 2840712), (444, 2232902), (457, 2169384), (518, 1913916), (698, 1420356), (777, 1275944), (888, 1116451), (914, 1084692), (1036, 956958), (1047, 946904), (1371, 723128), (1396, 710178), (1554, 637972), (1828, 542346), (2072, 478479), (2094, 473452), (2443, 405816), (2742, 361564), (2792, 355089), (3108, 318986), (3199, 309912), (3656, 271173), (4188, 236726), (4886, 202908), (5484, 180782), (6216, 159493), (6398, 154956), (7329, 135272), (8376, 118363), (9597, 103304), (9772, 101454), (10968, 90391), (12796, 77478), (12913, 76776), (14658, 67636), (16909, 58632), (19194, 51652), (19544, 50727), (25592, 38739), (25826, 38388), (29316, 33818)]