About the Number

129210720

129210719 ← → 129210721

2進数表記:111101100111001100101100000

漢数字表記:一億二千九百二十一万七百二十

素因数分解:

2 5 × 3 1 × 5 1 × 269189 1

素因数の和:269207
約数の個数: 48
約数和(自身を含む): 407015280
約数和(自身を除く): 277804560

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480, 269189, 538378, 807567, 1076756, 1345945, 1615134, 2153512, 2691890, 3230268, 4037835, 4307024, 5383780, 6460536, 8075670, 8614048, 10767560, 12921072, 16151340, 21535120, 25842144, 32302680, 43070240, 64605360, 129210720]

約数ペア:
[(1, 129210720), (2, 64605360), (3, 43070240), (4, 32302680), (5, 25842144), (6, 21535120), (8, 16151340), (10, 12921072), (12, 10767560), (15, 8614048), (16, 8075670), (20, 6460536), (24, 5383780), (30, 4307024), (32, 4037835), (40, 3230268), (48, 2691890), (60, 2153512), (80, 1615134), (96, 1345945), (120, 1076756), (160, 807567), (240, 538378), (480, 269189)]

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