About the Number

21425280

21425279 ← → 21425281

2進数表記:1010001101110110010000000

漢数字表記:二千百四十二万五千二百八十

素因数分解:

2 7 × 3 1 × 5 1 × 11159 1

素因数の和:11181
約数の個数: 64
約数和(自身を含む): 68299200
約数和(自身を除く): 46873920

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 320, 384, 480, 640, 960, 1920, 11159, 22318, 33477, 44636, 55795, 66954, 89272, 111590, 133908, 167385, 178544, 223180, 267816, 334770, 357088, 446360, 535632, 669540, 714176, 892720, 1071264, 1339080, 1428352, 1785440, 2142528, 2678160, 3570880, 4285056, 5356320, 7141760, 10712640, 21425280]

約数ペア:
[(1, 21425280), (2, 10712640), (3, 7141760), (4, 5356320), (5, 4285056), (6, 3570880), (8, 2678160), (10, 2142528), (12, 1785440), (15, 1428352), (16, 1339080), (20, 1071264), (24, 892720), (30, 714176), (32, 669540), (40, 535632), (48, 446360), (60, 357088), (64, 334770), (80, 267816), (96, 223180), (120, 178544), (128, 167385), (160, 133908), (192, 111590), (240, 89272), (320, 66954), (384, 55795), (480, 44636), (640, 33477), (960, 22318), (1920, 11159)]

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