About the Number

127991080

127991079 ← → 127991081

2進数表記:111101000001111110100101000

漢数字表記:一億二千七百九十九万千八十

素因数分解:

2 3 × 5 1 × 7 1 × 331 1 × 1381 1

素因数の和:1730
約数の個数: 64
約数和(自身を含む): 330353280
約数和(自身を除く): 202362200

約数列:
[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 331, 662, 1324, 1381, 1655, 2317, 2648, 2762, 3310, 4634, 5524, 6620, 6905, 9268, 9667, 11048, 11585, 13240, 13810, 18536, 19334, 23170, 27620, 38668, 46340, 48335, 55240, 77336, 92680, 96670, 193340, 386680, 457111, 914222, 1828444, 2285555, 3199777, 3656888, 4571110, 6399554, 9142220, 12799108, 15998885, 18284440, 25598216, 31997770, 63995540, 127991080]

約数ペア:
[(1, 127991080), (2, 63995540), (4, 31997770), (5, 25598216), (7, 18284440), (8, 15998885), (10, 12799108), (14, 9142220), (20, 6399554), (28, 4571110), (35, 3656888), (40, 3199777), (56, 2285555), (70, 1828444), (140, 914222), (280, 457111), (331, 386680), (662, 193340), (1324, 96670), (1381, 92680), (1655, 77336), (2317, 55240), (2648, 48335), (2762, 46340), (3310, 38668), (4634, 27620), (5524, 23170), (6620, 19334), (6905, 18536), (9268, 13810), (9667, 13240), (11048, 11585)]

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