About the Number

129120

129119 ← → 129121

2進数表記:11111100001100000

漢数字表記:十二万九千百二十

素因数分解:

2 5 × 3 1 × 5 1 × 269 1

素因数の和:287
約数の個数: 48
約数和(自身を含む): 408240
約数和(自身を除く): 279120

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, 269, 480, 538, 807, 1076, 1345, 1614, 2152, 2690, 3228, 4035, 4304, 5380, 6456, 8070, 8608, 10760, 12912, 16140, 21520, 25824, 32280, 43040, 64560, 129120]

約数ペア:
[(1, 129120), (2, 64560), (3, 43040), (4, 32280), (5, 25824), (6, 21520), (8, 16140), (10, 12912), (12, 10760), (15, 8608), (16, 8070), (20, 6456), (24, 5380), (30, 4304), (32, 4035), (40, 3228), (48, 2690), (60, 2152), (80, 1614), (96, 1345), (120, 1076), (160, 807), (240, 538), (269, 480)]

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