About the Number

1208640

1208639 ← → 1208641

2進数表記:100100111000101000000

漢数字表記:百二十万八千六百四十

素因数分解:

2 6 × 3 1 × 5 1 × 1259 1

素因数の和:1279
約数の個数: 56
約数和(自身を含む): 3840480
約数和(自身を除く): 2631840

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, 1259, 2518, 3777, 5036, 6295, 7554, 10072, 12590, 15108, 18885, 20144, 25180, 30216, 37770, 40288, 50360, 60432, 75540, 80576, 100720, 120864, 151080, 201440, 241728, 302160, 402880, 604320, 1208640]

約数ペア:
[(1, 1208640), (2, 604320), (3, 402880), (4, 302160), (5, 241728), (6, 201440), (8, 151080), (10, 120864), (12, 100720), (15, 80576), (16, 75540), (20, 60432), (24, 50360), (30, 40288), (32, 37770), (40, 30216), (48, 25180), (60, 20144), (64, 18885), (80, 15108), (96, 12590), (120, 10072), (160, 7554), (192, 6295), (240, 5036), (320, 3777), (480, 2518), (960, 1259)]

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