About the Number

31013280

31013279 ← → 31013281

2進数表記:1110110010011100110100000

漢数字表記:三千百一万三千二百八十

素因数分解:

2 5 × 3 4 × 5 1 × 2393 1

素因数の和:2420
約数の個数: 120
約数和(自身を含む): 109496772
約数和(自身を除く): 78483492

約数列:
[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 96, 108, 120, 135, 144, 160, 162, 180, 216, 240, 270, 288, 324, 360, 405, 432, 480, 540, 648, 720, 810, 864, 1080, 1296, 1440, 1620, 2160, 2393, 2592, 3240, 4320, 4786, 6480, 7179, 9572, 11965, 12960, 14358, 19144, 21537, 23930, 28716, 35895, 38288, 43074, 47860, 57432, 64611, 71790, 76576, 86148, 95720, 107685, 114864, 129222, 143580, 172296, 191440, 193833, 215370, 229728, 258444, 287160, 323055, 344592, 382880, 387666, 430740, 516888, 574320, 646110, 689184, 775332, 861480, 969165, 1033776, 1148640, 1292220, 1550664, 1722960, 1938330, 2067552, 2584440, 3101328, 3445920, 3876660, 5168880, 6202656, 7753320, 10337760, 15506640, 31013280]

約数ペア:
[(1, 31013280), (2, 15506640), (3, 10337760), (4, 7753320), (5, 6202656), (6, 5168880), (8, 3876660), (9, 3445920), (10, 3101328), (12, 2584440), (15, 2067552), (16, 1938330), (18, 1722960), (20, 1550664), (24, 1292220), (27, 1148640), (30, 1033776), (32, 969165), (36, 861480), (40, 775332), (45, 689184), (48, 646110), (54, 574320), (60, 516888), (72, 430740), (80, 387666), (81, 382880), (90, 344592), (96, 323055), (108, 287160), (120, 258444), (135, 229728), (144, 215370), (160, 193833), (162, 191440), (180, 172296), (216, 143580), (240, 129222), (270, 114864), (288, 107685), (324, 95720), (360, 86148), (405, 76576), (432, 71790), (480, 64611), (540, 57432), (648, 47860), (720, 43074), (810, 38288), (864, 35895), (1080, 28716), (1296, 23930), (1440, 21537), (1620, 19144), (2160, 14358), (2393, 12960), (2592, 11965), (3240, 9572), (4320, 7179), (4786, 6480)]

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