About the Number

81681768

81681767 ← → 81681769

2進数表記:100110111100101110101101000

漢数字表記:八千百六十八万千七百六十八

素因数分解:

2 3 × 3 2 × 7 1 × 43 1 × 3769 1

素因数の和:3831
約数の個数: 96
約数和(自身を含む): 258772800
約数和(自身を除く): 177091032

約数列:
[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 43, 56, 63, 72, 84, 86, 126, 129, 168, 172, 252, 258, 301, 344, 387, 504, 516, 602, 774, 903, 1032, 1204, 1548, 1806, 2408, 2709, 3096, 3612, 3769, 5418, 7224, 7538, 10836, 11307, 15076, 21672, 22614, 26383, 30152, 33921, 45228, 52766, 67842, 79149, 90456, 105532, 135684, 158298, 162067, 211064, 237447, 271368, 316596, 324134, 474894, 486201, 633192, 648268, 949788, 972402, 1134469, 1296536, 1458603, 1899576, 1944804, 2268938, 2917206, 3403407, 3889608, 4537876, 5834412, 6806814, 9075752, 10210221, 11668824, 13613628, 20420442, 27227256, 40840884, 81681768]

約数ペア:
[(1, 81681768), (2, 40840884), (3, 27227256), (4, 20420442), (6, 13613628), (7, 11668824), (8, 10210221), (9, 9075752), (12, 6806814), (14, 5834412), (18, 4537876), (21, 3889608), (24, 3403407), (28, 2917206), (36, 2268938), (42, 1944804), (43, 1899576), (56, 1458603), (63, 1296536), (72, 1134469), (84, 972402), (86, 949788), (126, 648268), (129, 633192), (168, 486201), (172, 474894), (252, 324134), (258, 316596), (301, 271368), (344, 237447), (387, 211064), (504, 162067), (516, 158298), (602, 135684), (774, 105532), (903, 90456), (1032, 79149), (1204, 67842), (1548, 52766), (1806, 45228), (2408, 33921), (2709, 30152), (3096, 26383), (3612, 22614), (3769, 21672), (5418, 15076), (7224, 11307), (7538, 10836)]

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