About the Number

121039920

121039919 ← → 121039921

2進数表記:111001101101110110000110000

漢数字表記:一億二千百三万九千九百二十

素因数分解:

2 4 × 3 4 × 5 1 × 18679 1

素因数の和:18704
約数の個数: 100
約数和(自身を含む): 420412080
約数和(自身を除く): 299372160

約数列:
[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 270, 324, 360, 405, 432, 540, 648, 720, 810, 1080, 1296, 1620, 2160, 3240, 6480, 18679, 37358, 56037, 74716, 93395, 112074, 149432, 168111, 186790, 224148, 280185, 298864, 336222, 373580, 448296, 504333, 560370, 672444, 747160, 840555, 896592, 1008666, 1120740, 1344888, 1494320, 1512999, 1681110, 2017332, 2241480, 2521665, 2689776, 3025998, 3362220, 4034664, 4482960, 5043330, 6051996, 6724440, 7564995, 8069328, 10086660, 12103992, 13448880, 15129990, 20173320, 24207984, 30259980, 40346640, 60519960, 121039920]

約数ペア:
[(1, 121039920), (2, 60519960), (3, 40346640), (4, 30259980), (5, 24207984), (6, 20173320), (8, 15129990), (9, 13448880), (10, 12103992), (12, 10086660), (15, 8069328), (16, 7564995), (18, 6724440), (20, 6051996), (24, 5043330), (27, 4482960), (30, 4034664), (36, 3362220), (40, 3025998), (45, 2689776), (48, 2521665), (54, 2241480), (60, 2017332), (72, 1681110), (80, 1512999), (81, 1494320), (90, 1344888), (108, 1120740), (120, 1008666), (135, 896592), (144, 840555), (162, 747160), (180, 672444), (216, 560370), (240, 504333), (270, 448296), (324, 373580), (360, 336222), (405, 298864), (432, 280185), (540, 224148), (648, 186790), (720, 168111), (810, 149432), (1080, 112074), (1296, 93395), (1620, 74716), (2160, 56037), (3240, 37358), (6480, 18679)]

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