About the Number

128828988

128828987 ← → 128828989

2進数表記:111101011011100011000111100

漢数字表記:一億二千八百八十二万八千九百八十八

素因数分解:

2 2 × 3 3 × 229 1 × 5209 1

素因数の和:5451
約数の個数: 48
約数和(自身を含む): 335524000
約数和(自身を除く): 206695012

約数列:
[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 229, 458, 687, 916, 1374, 2061, 2748, 4122, 5209, 6183, 8244, 10418, 12366, 15627, 20836, 24732, 31254, 46881, 62508, 93762, 140643, 187524, 281286, 562572, 1192861, 2385722, 3578583, 4771444, 7157166, 10735749, 14314332, 21471498, 32207247, 42942996, 64414494, 128828988]

約数ペア:
[(1, 128828988), (2, 64414494), (3, 42942996), (4, 32207247), (6, 21471498), (9, 14314332), (12, 10735749), (18, 7157166), (27, 4771444), (36, 3578583), (54, 2385722), (108, 1192861), (229, 562572), (458, 281286), (687, 187524), (916, 140643), (1374, 93762), (2061, 62508), (2748, 46881), (4122, 31254), (5209, 24732), (6183, 20836), (8244, 15627), (10418, 12366)]

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