About the Number

71391780

71391779 ← → 71391781

2進数表記:100010000010101101000100100

漢数字表記:七千百三十九万千七百八十

素因数分解:

2 2 × 3 4 × 5 1 × 127 1 × 347 1

素因数の和:495
約数の個数: 120
約数和(自身を含む): 226372608
約数和(自身を除く): 154980828

約数列:
[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 127, 135, 162, 180, 254, 270, 324, 347, 381, 405, 508, 540, 635, 694, 762, 810, 1041, 1143, 1270, 1388, 1524, 1620, 1735, 1905, 2082, 2286, 2540, 3123, 3429, 3470, 3810, 4164, 4572, 5205, 5715, 6246, 6858, 6940, 7620, 9369, 10287, 10410, 11430, 12492, 13716, 15615, 17145, 18738, 20574, 20820, 22860, 28107, 31230, 34290, 37476, 41148, 44069, 46845, 51435, 56214, 62460, 68580, 88138, 93690, 102870, 112428, 132207, 140535, 176276, 187380, 205740, 220345, 264414, 281070, 396621, 440690, 528828, 562140, 661035, 793242, 881380, 1189863, 1322070, 1586484, 1983105, 2379726, 2644140, 3569589, 3966210, 4759452, 5949315, 7139178, 7932420, 11898630, 14278356, 17847945, 23797260, 35695890, 71391780]

約数ペア:
[(1, 71391780), (2, 35695890), (3, 23797260), (4, 17847945), (5, 14278356), (6, 11898630), (9, 7932420), (10, 7139178), (12, 5949315), (15, 4759452), (18, 3966210), (20, 3569589), (27, 2644140), (30, 2379726), (36, 1983105), (45, 1586484), (54, 1322070), (60, 1189863), (81, 881380), (90, 793242), (108, 661035), (127, 562140), (135, 528828), (162, 440690), (180, 396621), (254, 281070), (270, 264414), (324, 220345), (347, 205740), (381, 187380), (405, 176276), (508, 140535), (540, 132207), (635, 112428), (694, 102870), (762, 93690), (810, 88138), (1041, 68580), (1143, 62460), (1270, 56214), (1388, 51435), (1524, 46845), (1620, 44069), (1735, 41148), (1905, 37476), (2082, 34290), (2286, 31230), (2540, 28107), (3123, 22860), (3429, 20820), (3470, 20574), (3810, 18738), (4164, 17145), (4572, 15615), (5205, 13716), (5715, 12492), (6246, 11430), (6858, 10410), (6940, 10287), (7620, 9369)]

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