About the Number

128208120

128208119 ← → 128208121

2進数表記:111101001000100110011111000

漢数字表記:一億二千八百二十万八千百二十

素因数分解:

2 3 × 3 1 × 5 1 × 379 1 × 2819 1

素因数の和:3212
約数の個数: 64
約数和(自身を含む): 385776000
約数和(自身を除く): 257567880

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 379, 758, 1137, 1516, 1895, 2274, 2819, 3032, 3790, 4548, 5638, 5685, 7580, 8457, 9096, 11276, 11370, 14095, 15160, 16914, 22552, 22740, 28190, 33828, 42285, 45480, 56380, 67656, 84570, 112760, 169140, 338280, 1068401, 2136802, 3205203, 4273604, 5342005, 6410406, 8547208, 10684010, 12820812, 16026015, 21368020, 25641624, 32052030, 42736040, 64104060, 128208120]

約数ペア:
[(1, 128208120), (2, 64104060), (3, 42736040), (4, 32052030), (5, 25641624), (6, 21368020), (8, 16026015), (10, 12820812), (12, 10684010), (15, 8547208), (20, 6410406), (24, 5342005), (30, 4273604), (40, 3205203), (60, 2136802), (120, 1068401), (379, 338280), (758, 169140), (1137, 112760), (1516, 84570), (1895, 67656), (2274, 56380), (2819, 45480), (3032, 42285), (3790, 33828), (4548, 28190), (5638, 22740), (5685, 22552), (7580, 16914), (8457, 15160), (9096, 14095), (11276, 11370)]

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