About the Number

81308904

81308903 ← → 81308905

2進数表記:100110110001010110011101000

漢数字表記:八千百三十万八千九百四

素因数分解:

2 3 × 3 1 × 19 1 × 41 1 × 4349 1

素因数の和:4418
約数の個数: 64
約数和(自身を含む): 219240000
約数和(自身を除く): 137931096

約数列:
[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 41, 57, 76, 82, 114, 123, 152, 164, 228, 246, 328, 456, 492, 779, 984, 1558, 2337, 3116, 4349, 4674, 6232, 8698, 9348, 13047, 17396, 18696, 26094, 34792, 52188, 82631, 104376, 165262, 178309, 247893, 330524, 356618, 495786, 534927, 661048, 713236, 991572, 1069854, 1426472, 1983144, 2139708, 3387871, 4279416, 6775742, 10163613, 13551484, 20327226, 27102968, 40654452, 81308904]

約数ペア:
[(1, 81308904), (2, 40654452), (3, 27102968), (4, 20327226), (6, 13551484), (8, 10163613), (12, 6775742), (19, 4279416), (24, 3387871), (38, 2139708), (41, 1983144), (57, 1426472), (76, 1069854), (82, 991572), (114, 713236), (123, 661048), (152, 534927), (164, 495786), (228, 356618), (246, 330524), (328, 247893), (456, 178309), (492, 165262), (779, 104376), (984, 82631), (1558, 52188), (2337, 34792), (3116, 26094), (4349, 18696), (4674, 17396), (6232, 13047), (8698, 9348)]

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