About the Number

129320

129319 ← → 129321

2進数表記:11111100100101000

漢数字表記:十二万九千三百二十

素因数分解:

2 3 × 5 1 × 53 1 × 61 1

素因数の和:125
約数の個数: 32
約数和(自身を含む): 301320
約数和(自身を除く): 172000

約数列:
[1, 2, 4, 5, 8, 10, 20, 40, 53, 61, 106, 122, 212, 244, 265, 305, 424, 488, 530, 610, 1060, 1220, 2120, 2440, 3233, 6466, 12932, 16165, 25864, 32330, 64660, 129320]

約数ペア:
[(1, 129320), (2, 64660), (4, 32330), (5, 25864), (8, 16165), (10, 12932), (20, 6466), (40, 3233), (53, 2440), (61, 2120), (106, 1220), (122, 1060), (212, 610), (244, 530), (265, 488), (305, 424)]

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