About the Number

1381440

1381439 ← → 1381441

2進数表記:101010001010001000000

漢数字表記:百三十八万千四百四十

素因数分解:

2 6 × 3 1 × 5 1 × 1439 1

素因数の和:1459
約数の個数: 56
約数和(自身を含む): 4389120
約数和(自身を除く): 3007680

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, 160, 192, 240, 320, 480, 960, 1439, 2878, 4317, 5756, 7195, 8634, 11512, 14390, 17268, 21585, 23024, 28780, 34536, 43170, 46048, 57560, 69072, 86340, 92096, 115120, 138144, 172680, 230240, 276288, 345360, 460480, 690720, 1381440]

約数ペア:
[(1, 1381440), (2, 690720), (3, 460480), (4, 345360), (5, 276288), (6, 230240), (8, 172680), (10, 138144), (12, 115120), (15, 92096), (16, 86340), (20, 69072), (24, 57560), (30, 46048), (32, 43170), (40, 34536), (48, 28780), (60, 23024), (64, 21585), (80, 17268), (96, 14390), (120, 11512), (160, 8634), (192, 7195), (240, 5756), (320, 4317), (480, 2878), (960, 1439)]

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