About the Number

127280988

127280987 ← → 127280989

2進数表記:111100101100010011101011100

漢数字表記:一億二千七百二十八万九百八十八

素因数分解:

2 2 × 3 2 × 23 1 × 347 1 × 443 1

素因数の和:823
約数の個数: 72
約数和(自身を含む): 337454208
約数和(自身を除く): 210173220

約数列:
[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 138, 207, 276, 347, 414, 443, 694, 828, 886, 1041, 1329, 1388, 1772, 2082, 2658, 3123, 3987, 4164, 5316, 6246, 7974, 7981, 10189, 12492, 15948, 15962, 20378, 23943, 30567, 31924, 40756, 47886, 61134, 71829, 91701, 95772, 122268, 143658, 153721, 183402, 287316, 307442, 366804, 461163, 614884, 922326, 1383489, 1844652, 2766978, 3535583, 5533956, 7071166, 10606749, 14142332, 21213498, 31820247, 42426996, 63640494, 127280988]

約数ペア:
[(1, 127280988), (2, 63640494), (3, 42426996), (4, 31820247), (6, 21213498), (9, 14142332), (12, 10606749), (18, 7071166), (23, 5533956), (36, 3535583), (46, 2766978), (69, 1844652), (92, 1383489), (138, 922326), (207, 614884), (276, 461163), (347, 366804), (414, 307442), (443, 287316), (694, 183402), (828, 153721), (886, 143658), (1041, 122268), (1329, 95772), (1388, 91701), (1772, 71829), (2082, 61134), (2658, 47886), (3123, 40756), (3987, 31924), (4164, 30567), (5316, 23943), (6246, 20378), (7974, 15962), (7981, 15948), (10189, 12492)]

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