About the Number

81199712

81199711 ← → 81199713

2進数表記:100110101110000001001100000

漢数字表記:八千百十九万九千七百十二

素因数分解:

2 5 × 11 2 × 67 1 × 313 1

素因数の和:412
約数の個数: 72
約数和(自身を含む): 178908408
約数和(自身を除く): 97708696

約数列:
[1, 2, 4, 8, 11, 16, 22, 32, 44, 67, 88, 121, 134, 176, 242, 268, 313, 352, 484, 536, 626, 737, 968, 1072, 1252, 1474, 1936, 2144, 2504, 2948, 3443, 3872, 5008, 5896, 6886, 8107, 10016, 11792, 13772, 16214, 20971, 23584, 27544, 32428, 37873, 41942, 55088, 64856, 75746, 83884, 110176, 129712, 151492, 167768, 230681, 259424, 302984, 335536, 461362, 605968, 671072, 922724, 1211936, 1845448, 2537491, 3690896, 5074982, 7381792, 10149964, 20299928, 40599856, 81199712]

約数ペア:
[(1, 81199712), (2, 40599856), (4, 20299928), (8, 10149964), (11, 7381792), (16, 5074982), (22, 3690896), (32, 2537491), (44, 1845448), (67, 1211936), (88, 922724), (121, 671072), (134, 605968), (176, 461362), (242, 335536), (268, 302984), (313, 259424), (352, 230681), (484, 167768), (536, 151492), (626, 129712), (737, 110176), (968, 83884), (1072, 75746), (1252, 64856), (1474, 55088), (1936, 41942), (2144, 37873), (2504, 32428), (2948, 27544), (3443, 23584), (3872, 20971), (5008, 16214), (5896, 13772), (6886, 11792), (8107, 10016)]

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