About the Number

389938680

389938679 ← → 389938681

2進数表記:10111001111011111110111111000

漢数字表記:三億八千九百九十三万八千六百八十

素因数分解:

2 3 × 3 2 × 5 1 × 991 1 × 1093 1

素因数の和:2101
約数の個数: 96
約数和(自身を含む): 1269740160
約数和(自身を除く): 879801480

約数列:
[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 991, 1093, 1982, 2186, 2973, 3279, 3964, 4372, 4955, 5465, 5946, 6558, 7928, 8744, 8919, 9837, 9910, 10930, 11892, 13116, 14865, 16395, 17838, 19674, 19820, 21860, 23784, 26232, 29730, 32790, 35676, 39348, 39640, 43720, 44595, 49185, 59460, 65580, 71352, 78696, 89190, 98370, 118920, 131160, 178380, 196740, 356760, 393480, 1083163, 2166326, 3249489, 4332652, 5415815, 6498978, 8665304, 9748467, 10831630, 12997956, 16247445, 19496934, 21663260, 25995912, 32494890, 38993868, 43326520, 48742335, 64989780, 77987736, 97484670, 129979560, 194969340, 389938680]

約数ペア:
[(1, 389938680), (2, 194969340), (3, 129979560), (4, 97484670), (5, 77987736), (6, 64989780), (8, 48742335), (9, 43326520), (10, 38993868), (12, 32494890), (15, 25995912), (18, 21663260), (20, 19496934), (24, 16247445), (30, 12997956), (36, 10831630), (40, 9748467), (45, 8665304), (60, 6498978), (72, 5415815), (90, 4332652), (120, 3249489), (180, 2166326), (360, 1083163), (991, 393480), (1093, 356760), (1982, 196740), (2186, 178380), (2973, 131160), (3279, 118920), (3964, 98370), (4372, 89190), (4955, 78696), (5465, 71352), (5946, 65580), (6558, 59460), (7928, 49185), (8744, 44595), (8919, 43720), (9837, 39640), (9910, 39348), (10930, 35676), (11892, 32790), (13116, 29730), (14865, 26232), (16395, 23784), (17838, 21860), (19674, 19820)]

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