About the Number

121240

121239 ← → 121241

2進数表記:11101100110011000

漢数字表記:十二万千二百四十

素因数分解:

2 3 × 5 1 × 7 1 × 433 1

素因数の和:451
約数の個数: 32
約数和(自身を含む): 312480
約数和(自身を除く): 191240

約数列:
[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 433, 866, 1732, 2165, 3031, 3464, 4330, 6062, 8660, 12124, 15155, 17320, 24248, 30310, 60620, 121240]

約数ペア:
[(1, 121240), (2, 60620), (4, 30310), (5, 24248), (7, 17320), (8, 15155), (10, 12124), (14, 8660), (20, 6062), (28, 4330), (35, 3464), (40, 3031), (56, 2165), (70, 1732), (140, 866), (280, 433)]

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