About the Number

28349280

28349279 ← → 28349281

2進数表記:1101100001001001101100000

漢数字表記:二千八百三十四万九千二百八十

素因数分解:

2 5 × 3 2 × 5 1 × 19687 1

素因数の和:19708
約数の個数: 72
約数和(自身を含む): 96746832
約数和(自身を除く): 68397552

約数列:
[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 19687, 39374, 59061, 78748, 98435, 118122, 157496, 177183, 196870, 236244, 295305, 314992, 354366, 393740, 472488, 590610, 629984, 708732, 787480, 885915, 944976, 1181220, 1417464, 1574960, 1771830, 1889952, 2362440, 2834928, 3149920, 3543660, 4724880, 5669856, 7087320, 9449760, 14174640, 28349280]

約数ペア:
[(1, 28349280), (2, 14174640), (3, 9449760), (4, 7087320), (5, 5669856), (6, 4724880), (8, 3543660), (9, 3149920), (10, 2834928), (12, 2362440), (15, 1889952), (16, 1771830), (18, 1574960), (20, 1417464), (24, 1181220), (30, 944976), (32, 885915), (36, 787480), (40, 708732), (45, 629984), (48, 590610), (60, 472488), (72, 393740), (80, 354366), (90, 314992), (96, 295305), (120, 236244), (144, 196870), (160, 177183), (180, 157496), (240, 118122), (288, 98435), (360, 78748), (480, 59061), (720, 39374), (1440, 19687)]

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