81239312

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:157

約数の個数: 160

約数和(自身を含む): 212557824

約数和(自身を除く): 131318512

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 23, 28, 44, 46, 47, 56, 61, 77, 88, 92, 94, 112, 122, 154, 161, 176, 184, 188, 244, 253, 308, 322, 329, 368, 376, 427, 488, 506, 517, 616, 644, 658, 671, 752, 854, 976, 1012, 1034, 1081, 1232, 1288, 1316, 1342, 1403, 1708, 1771, 2024, 2068, 2162, 2576, 2632, 2684, 2806, 2867, 3416, 3542, 3619, 4048, 4136, 4324, 4697, 5264, 5368, 5612, 5734, 6832, 7084, 7238, 7567, 8272, 8648, 9394, 9821, 10736, 11224, 11468, 11891, 14168, 14476, 15134, 15433, 17296, 18788, 19642, 20069, 22448, 22936, 23782, 28336, 28952, 30268, 30866, 31537, 37576, 39284, 40138, 45872, 47564, 57904, 60536, 61732, 63074, 65941, 75152, 78568, 80276, 83237, 95128, 108031, 121072, 123464, 126148, 131882, 157136, 160552, 166474, 190256, 216062, 220759, 246928, 252296, 263764, 321104, 332948, 432124, 441518, 461587, 504592, 527528, 665896, 725351, 864248, 883036, 923174, 1055056, 1331792, 1450702, 1728496, 1766072, 1846348, 2901404, 3532144, 3692696, 5077457, 5802808, 7385392, 10154914, 11605616, 20309828, 40619656, 81239312]

約数ペア:

[(1, 81239312), (2, 40619656), (4, 20309828), (7, 11605616), (8, 10154914), (11, 7385392), (14, 5802808), (16, 5077457), (22, 3692696), (23, 3532144), (28, 2901404), (44, 1846348), (46, 1766072), (47, 1728496), (56, 1450702), (61, 1331792), (77, 1055056), (88, 923174), (92, 883036), (94, 864248), (112, 725351), (122, 665896), (154, 527528), (161, 504592), (176, 461587), (184, 441518), (188, 432124), (244, 332948), (253, 321104), (308, 263764), (322, 252296), (329, 246928), (368, 220759), (376, 216062), (427, 190256), (488, 166474), (506, 160552), (517, 157136), (616, 131882), (644, 126148), (658, 123464), (671, 121072), (752, 108031), (854, 95128), (976, 83237), (1012, 80276), (1034, 78568), (1081, 75152), (1232, 65941), (1288, 63074), (1316, 61732), (1342, 60536), (1403, 57904), (1708, 47564), (1771, 45872), (2024, 40138), (2068, 39284), (2162, 37576), (2576, 31537), (2632, 30866), (2684, 30268), (2806, 28952), (2867, 28336), (3416, 23782), (3542, 22936), (3619, 22448), (4048, 20069), (4136, 19642), (4324, 18788), (4697, 17296), (5264, 15433), (5368, 15134), (5612, 14476), (5734, 14168), (6832, 11891), (7084, 11468), (7238, 11224), (7567, 10736), (8272, 9821), (8648, 9394)]