About the Number

120205680

120205679 ← → 120205681

2進数表記:111001010100011000101110000

漢数字表記:一億二千二十万五千六百八十

素因数分解:

2 4 × 3 1 × 5 1 × 7 1 × 71551 1

素因数の和:71574
約数の個数: 80
約数和(自身を含む): 425877504
約数和(自身を除く): 305671824

約数列:
[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 71551, 143102, 214653, 286204, 357755, 429306, 500857, 572408, 715510, 858612, 1001714, 1073265, 1144816, 1431020, 1502571, 1717224, 2003428, 2146530, 2504285, 2862040, 3005142, 3434448, 4006856, 4293060, 5008570, 5724080, 6010284, 7512855, 8013712, 8586120, 10017140, 12020568, 15025710, 17172240, 20034280, 24041136, 30051420, 40068560, 60102840, 120205680]

約数ペア:
[(1, 120205680), (2, 60102840), (3, 40068560), (4, 30051420), (5, 24041136), (6, 20034280), (7, 17172240), (8, 15025710), (10, 12020568), (12, 10017140), (14, 8586120), (15, 8013712), (16, 7512855), (20, 6010284), (21, 5724080), (24, 5008570), (28, 4293060), (30, 4006856), (35, 3434448), (40, 3005142), (42, 2862040), (48, 2504285), (56, 2146530), (60, 2003428), (70, 1717224), (80, 1502571), (84, 1431020), (105, 1144816), (112, 1073265), (120, 1001714), (140, 858612), (168, 715510), (210, 572408), (240, 500857), (280, 429306), (336, 357755), (420, 286204), (560, 214653), (840, 143102), (1680, 71551)]

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