About the Number

257029240

257029239 ← → 257029241

2進数表記:1111010100011111010001111000

漢数字表記:二億五千七百二万九千二百四十

素因数分解:

2 3 × 5 1 × 13 1 × 494287 1

素因数の和:494311
約数の個数: 32
約数和(自身を含む): 622802880
約数和(自身を除く): 365773640

約数列:
[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 494287, 988574, 1977148, 2471435, 3954296, 4942870, 6425731, 9885740, 12851462, 19771480, 25702924, 32128655, 51405848, 64257310, 128514620, 257029240]

約数ペア:
[(1, 257029240), (2, 128514620), (4, 64257310), (5, 51405848), (8, 32128655), (10, 25702924), (13, 19771480), (20, 12851462), (26, 9885740), (40, 6425731), (52, 4942870), (65, 3954296), (104, 2471435), (130, 1977148), (260, 988574), (520, 494287)]

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