81138672

素因数分解:

$2^4\times 3^5\times {\mathrm{41}}^1\times {\mathrm{509}}^1$

素因数の和:573

約数の個数: 120

約数和(自身を含む): 241703280

約数和(自身を除く): 160564608

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 41, 48, 54, 72, 81, 82, 108, 123, 144, 162, 164, 216, 243, 246, 324, 328, 369, 432, 486, 492, 509, 648, 656, 738, 972, 984, 1018, 1107, 1296, 1476, 1527, 1944, 1968, 2036, 2214, 2952, 3054, 3321, 3888, 4072, 4428, 4581, 5904, 6108, 6642, 8144, 8856, 9162, 9963, 12216, 13284, 13743, 17712, 18324, 19926, 20869, 24432, 26568, 27486, 36648, 39852, 41229, 41738, 53136, 54972, 62607, 73296, 79704, 82458, 83476, 109944, 123687, 125214, 159408, 164916, 166952, 187821, 219888, 247374, 250428, 329832, 333904, 375642, 494748, 500856, 563463, 659664, 751284, 989496, 1001712, 1126926, 1502568, 1690389, 1978992, 2253852, 3005136, 3380778, 4507704, 5071167, 6761556, 9015408, 10142334, 13523112, 20284668, 27046224, 40569336, 81138672]

約数ペア:

[(1, 81138672), (2, 40569336), (3, 27046224), (4, 20284668), (6, 13523112), (8, 10142334), (9, 9015408), (12, 6761556), (16, 5071167), (18, 4507704), (24, 3380778), (27, 3005136), (36, 2253852), (41, 1978992), (48, 1690389), (54, 1502568), (72, 1126926), (81, 1001712), (82, 989496), (108, 751284), (123, 659664), (144, 563463), (162, 500856), (164, 494748), (216, 375642), (243, 333904), (246, 329832), (324, 250428), (328, 247374), (369, 219888), (432, 187821), (486, 166952), (492, 164916), (509, 159408), (648, 125214), (656, 123687), (738, 109944), (972, 83476), (984, 82458), (1018, 79704), (1107, 73296), (1296, 62607), (1476, 54972), (1527, 53136), (1944, 41738), (1968, 41229), (2036, 39852), (2214, 36648), (2952, 27486), (3054, 26568), (3321, 24432), (3888, 20869), (4072, 19926), (4428, 18324), (4581, 17712), (5904, 13743), (6108, 13284), (6642, 12216), (8144, 9963), (8856, 9162)]