About the Number

207429985

207429984 ← → 207429986

2進数表記:1100010111010010000101100001

漢数字表記:二億七百四十二万九千九百八十五

素因数分解:

5 1 × 7 2 × 23 1 × 131 1 × 281 1

素因数の和:454
約数の個数: 48
約数和(自身を含む): 305534592
約数和(自身を除く): 98104607

約数列:
[1, 5, 7, 23, 35, 49, 115, 131, 161, 245, 281, 655, 805, 917, 1127, 1405, 1967, 3013, 4585, 5635, 6419, 6463, 9835, 13769, 15065, 21091, 32095, 32315, 36811, 45241, 68845, 105455, 147637, 184055, 226205, 257677, 316687, 738185, 846653, 1288385, 1583435, 1803739, 4233265, 5926571, 9018695, 29632855, 41485997, 207429985]

約数ペア:
[(1, 207429985), (5, 41485997), (7, 29632855), (23, 9018695), (35, 5926571), (49, 4233265), (115, 1803739), (131, 1583435), (161, 1288385), (245, 846653), (281, 738185), (655, 316687), (805, 257677), (917, 226205), (1127, 184055), (1405, 147637), (1967, 105455), (3013, 68845), (4585, 45241), (5635, 36811), (6419, 32315), (6463, 32095), (9835, 21091), (13769, 15065)]

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