About the Number

201990012

201990011 ← → 201990013

2進数表記:1100000010100001111101111100

漢数字表記:二億百九十九万十二

素因数分解:

2 2 × 3 1 × 7 1 × 2404643 1

素因数の和:2404657
約数の個数: 24
約数和(自身を含む): 538640256
約数和(自身を除く): 336650244

約数列:
[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 2404643, 4809286, 7213929, 9618572, 14427858, 16832501, 28855716, 33665002, 50497503, 67330004, 100995006, 201990012]

約数ペア:
[(1, 201990012), (2, 100995006), (3, 67330004), (4, 50497503), (6, 33665002), (7, 28855716), (12, 16832501), (14, 14427858), (21, 9618572), (28, 7213929), (42, 4809286), (84, 2404643)]

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