About the Number

129809080

129809079 ← → 129809081

2進数表記:111101111001011101010111000

漢数字表記:一億二千九百八十万九千八十

素因数分解:

2 3 × 5 1 × 1601 1 × 2027 1

素因数の和:3639
約数の個数: 32
約数和(自身を含む): 292397040
約数和(自身を除く): 162587960

約数列:
[1, 2, 4, 5, 8, 10, 20, 40, 1601, 2027, 3202, 4054, 6404, 8005, 8108, 10135, 12808, 16010, 16216, 20270, 32020, 40540, 64040, 81080, 3245227, 6490454, 12980908, 16226135, 25961816, 32452270, 64904540, 129809080]

約数ペア:
[(1, 129809080), (2, 64904540), (4, 32452270), (5, 25961816), (8, 16226135), (10, 12980908), (20, 6490454), (40, 3245227), (1601, 81080), (2027, 64040), (3202, 40540), (4054, 32020), (6404, 20270), (8005, 16216), (8108, 16010), (10135, 12808)]

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