About the Number

129625480

129625479 ← → 129625481

2進数表記:111101110011110110110001000

漢数字表記:一億二千九百六十二万五千四百八十

素因数分解:

2 3 × 5 1 × 157 1 × 20641 1

素因数の和:20809
約数の個数: 32
約数和(自身を含む): 293529240
約数和(自身を除く): 163903760

約数列:
[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 6280, 20641, 41282, 82564, 103205, 165128, 206410, 412820, 825640, 3240637, 6481274, 12962548, 16203185, 25925096, 32406370, 64812740, 129625480]

約数ペア:
[(1, 129625480), (2, 64812740), (4, 32406370), (5, 25925096), (8, 16203185), (10, 12962548), (20, 6481274), (40, 3240637), (157, 825640), (314, 412820), (628, 206410), (785, 165128), (1256, 103205), (1570, 82564), (3140, 41282), (6280, 20641)]

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