About the Number

131480988

131480987 ← → 131480989

2進数表記:111110101100011110110011100

漢数字表記:一億三千百四十八万九百八十八

素因数分解:

2 2 × 3 1 × 19 1 × 576671 1

素因数の和:576697
約数の個数: 24
約数和(自身を含む): 322936320
約数和(自身を除く): 191455332

約数列:
[1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 114, 228, 576671, 1153342, 1730013, 2306684, 3460026, 6920052, 10956749, 21913498, 32870247, 43826996, 65740494, 131480988]

約数ペア:
[(1, 131480988), (2, 65740494), (3, 43826996), (4, 32870247), (6, 21913498), (12, 10956749), (19, 6920052), (38, 3460026), (57, 2306684), (76, 1730013), (114, 1153342), (228, 576671)]

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