About the Number

128401080

128401079 ← → 128401081

2進数表記:111101001110011111010111000

漢数字表記:一億二千八百四十万千八十

素因数分解:

2 3 × 3 1 × 5 1 × 1070009 1

素因数の和:1070023
約数の個数: 32
約数和(自身を含む): 385203600
約数和(自身を除く): 256802520

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 1070009, 2140018, 3210027, 4280036, 5350045, 6420054, 8560072, 10700090, 12840108, 16050135, 21400180, 25680216, 32100270, 42800360, 64200540, 128401080]

約数ペア:
[(1, 128401080), (2, 64200540), (3, 42800360), (4, 32100270), (5, 25680216), (6, 21400180), (8, 16050135), (10, 12840108), (12, 10700090), (15, 8560072), (20, 6420054), (24, 5350045), (30, 4280036), (40, 3210027), (60, 2140018), (120, 1070009)]

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