81956784

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{647}}^1$

素因数の和:707

約数の個数: 160

約数和(自身を含む): 269982720

約数和(自身を除く): 188025936

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 16, 21, 24, 26, 28, 29, 39, 42, 48, 52, 56, 58, 78, 84, 87, 91, 104, 112, 116, 156, 168, 174, 182, 203, 208, 232, 273, 312, 336, 348, 364, 377, 406, 464, 546, 609, 624, 647, 696, 728, 754, 812, 1092, 1131, 1218, 1294, 1392, 1456, 1508, 1624, 1941, 2184, 2262, 2436, 2588, 2639, 3016, 3248, 3882, 4368, 4524, 4529, 4872, 5176, 5278, 6032, 7764, 7917, 8411, 9048, 9058, 9744, 10352, 10556, 13587, 15528, 15834, 16822, 18096, 18116, 18763, 21112, 25233, 27174, 31056, 31668, 33644, 36232, 37526, 42224, 50466, 54348, 56289, 58877, 63336, 67288, 72464, 75052, 100932, 108696, 112578, 117754, 126672, 131341, 134576, 150104, 176631, 201864, 217392, 225156, 235508, 243919, 262682, 300208, 353262, 394023, 403728, 450312, 471016, 487838, 525364, 706524, 731757, 788046, 900624, 942032, 975676, 1050728, 1413048, 1463514, 1576092, 1707433, 1951352, 2101456, 2826096, 2927028, 3152184, 3414866, 3902704, 5122299, 5854056, 6304368, 6829732, 10244598, 11708112, 13659464, 20489196, 27318928, 40978392, 81956784]

約数ペア:

[(1, 81956784), (2, 40978392), (3, 27318928), (4, 20489196), (6, 13659464), (7, 11708112), (8, 10244598), (12, 6829732), (13, 6304368), (14, 5854056), (16, 5122299), (21, 3902704), (24, 3414866), (26, 3152184), (28, 2927028), (29, 2826096), (39, 2101456), (42, 1951352), (48, 1707433), (52, 1576092), (56, 1463514), (58, 1413048), (78, 1050728), (84, 975676), (87, 942032), (91, 900624), (104, 788046), (112, 731757), (116, 706524), (156, 525364), (168, 487838), (174, 471016), (182, 450312), (203, 403728), (208, 394023), (232, 353262), (273, 300208), (312, 262682), (336, 243919), (348, 235508), (364, 225156), (377, 217392), (406, 201864), (464, 176631), (546, 150104), (609, 134576), (624, 131341), (647, 126672), (696, 117754), (728, 112578), (754, 108696), (812, 100932), (1092, 75052), (1131, 72464), (1218, 67288), (1294, 63336), (1392, 58877), (1456, 56289), (1508, 54348), (1624, 50466), (1941, 42224), (2184, 37526), (2262, 36232), (2436, 33644), (2588, 31668), (2639, 31056), (3016, 27174), (3248, 25233), (3882, 21112), (4368, 18763), (4524, 18116), (4529, 18096), (4872, 16822), (5176, 15834), (5278, 15528), (6032, 13587), (7764, 10556), (7917, 10352), (8411, 9744), (9048, 9058)]