81964176

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{347}}^1$

素因数の和:421

約数の個数: 160

約数和(自身を含む): 262364160

約数和(自身を除く): 180399984

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 19, 21, 24, 28, 37, 38, 42, 48, 56, 57, 74, 76, 84, 111, 112, 114, 133, 148, 152, 168, 222, 228, 259, 266, 296, 304, 336, 347, 399, 444, 456, 518, 532, 592, 694, 703, 777, 798, 888, 912, 1036, 1041, 1064, 1388, 1406, 1554, 1596, 1776, 2072, 2082, 2109, 2128, 2429, 2776, 2812, 3108, 3192, 4144, 4164, 4218, 4858, 4921, 5552, 5624, 6216, 6384, 6593, 7287, 8328, 8436, 9716, 9842, 11248, 12432, 12839, 13186, 14574, 14763, 16656, 16872, 19432, 19684, 19779, 25678, 26372, 29148, 29526, 33744, 38517, 38864, 39368, 39558, 46151, 51356, 52744, 58296, 59052, 77034, 78736, 79116, 89873, 92302, 102712, 105488, 116592, 118104, 138453, 154068, 158232, 179746, 184604, 205424, 236208, 243941, 269619, 276906, 308136, 316464, 359492, 369208, 487882, 539238, 553812, 616272, 718984, 731823, 738416, 975764, 1078476, 1107624, 1437968, 1463646, 1707587, 1951528, 2156952, 2215248, 2927292, 3415174, 3903056, 4313904, 5122761, 5854584, 6830348, 10245522, 11709168, 13660696, 20491044, 27321392, 40982088, 81964176]

約数ペア:

[(1, 81964176), (2, 40982088), (3, 27321392), (4, 20491044), (6, 13660696), (7, 11709168), (8, 10245522), (12, 6830348), (14, 5854584), (16, 5122761), (19, 4313904), (21, 3903056), (24, 3415174), (28, 2927292), (37, 2215248), (38, 2156952), (42, 1951528), (48, 1707587), (56, 1463646), (57, 1437968), (74, 1107624), (76, 1078476), (84, 975764), (111, 738416), (112, 731823), (114, 718984), (133, 616272), (148, 553812), (152, 539238), (168, 487882), (222, 369208), (228, 359492), (259, 316464), (266, 308136), (296, 276906), (304, 269619), (336, 243941), (347, 236208), (399, 205424), (444, 184604), (456, 179746), (518, 158232), (532, 154068), (592, 138453), (694, 118104), (703, 116592), (777, 105488), (798, 102712), (888, 92302), (912, 89873), (1036, 79116), (1041, 78736), (1064, 77034), (1388, 59052), (1406, 58296), (1554, 52744), (1596, 51356), (1776, 46151), (2072, 39558), (2082, 39368), (2109, 38864), (2128, 38517), (2429, 33744), (2776, 29526), (2812, 29148), (3108, 26372), (3192, 25678), (4144, 19779), (4164, 19684), (4218, 19432), (4858, 16872), (4921, 16656), (5552, 14763), (5624, 14574), (6216, 13186), (6384, 12839), (6593, 12432), (7287, 11248), (8328, 9842), (8436, 9716)]