989000012

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{1777}}^1$

素因数の和:1951

約数の個数: 96

約数和(自身を含む): 2341839360

約数和(自身を除く): 1352839348

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 52, 77, 91, 139, 143, 154, 182, 278, 286, 308, 364, 556, 572, 973, 1001, 1529, 1777, 1807, 1946, 2002, 3058, 3554, 3614, 3892, 4004, 6116, 7108, 7228, 10703, 12439, 12649, 19547, 19877, 21406, 23101, 24878, 25298, 39094, 39754, 42812, 46202, 49756, 50596, 78188, 79508, 92404, 136829, 139139, 161707, 247003, 254111, 273658, 278278, 323414, 494006, 508222, 547316, 556556, 646828, 988012, 1016444, 1729021, 1778777, 2717033, 3211039, 3458042, 3557554, 5434066, 6422078, 6916084, 7115108, 10868132, 12844156, 19019231, 22477273, 35321429, 38038462, 44954546, 70642858, 76076924, 89909092, 141285716, 247250003, 494500006, 989000012]

約数ペア:

[(1, 989000012), (2, 494500006), (4, 247250003), (7, 141285716), (11, 89909092), (13, 76076924), (14, 70642858), (22, 44954546), (26, 38038462), (28, 35321429), (44, 22477273), (52, 19019231), (77, 12844156), (91, 10868132), (139, 7115108), (143, 6916084), (154, 6422078), (182, 5434066), (278, 3557554), (286, 3458042), (308, 3211039), (364, 2717033), (556, 1778777), (572, 1729021), (973, 1016444), (1001, 988012), (1529, 646828), (1777, 556556), (1807, 547316), (1946, 508222), (2002, 494006), (3058, 323414), (3554, 278278), (3614, 273658), (3892, 254111), (4004, 247003), (6116, 161707), (7108, 139139), (7228, 136829), (10703, 92404), (12439, 79508), (12649, 78188), (19547, 50596), (19877, 49756), (21406, 46202), (23101, 42812), (24878, 39754), (25298, 39094)]