About the Number

108387990

108387989 ← → 108387991

2進数表記:110011101011101111010010110

漢数字表記:一億八百三十八万七千九百九十

素因数分解:

2 1 × 3 3 × 5 1 × 229 1 × 1753 1

素因数の和:1998
約数の個数: 64
約数和(自身を含む): 290462400
約数和(自身を除く): 182074410

約数列:
[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 90, 135, 229, 270, 458, 687, 1145, 1374, 1753, 2061, 2290, 3435, 3506, 4122, 5259, 6183, 6870, 8765, 10305, 10518, 12366, 15777, 17530, 20610, 26295, 30915, 31554, 47331, 52590, 61830, 78885, 94662, 157770, 236655, 401437, 473310, 802874, 1204311, 2007185, 2408622, 3612933, 4014370, 6021555, 7225866, 10838799, 12043110, 18064665, 21677598, 36129330, 54193995, 108387990]

約数ペア:
[(1, 108387990), (2, 54193995), (3, 36129330), (5, 21677598), (6, 18064665), (9, 12043110), (10, 10838799), (15, 7225866), (18, 6021555), (27, 4014370), (30, 3612933), (45, 2408622), (54, 2007185), (90, 1204311), (135, 802874), (229, 473310), (270, 401437), (458, 236655), (687, 157770), (1145, 94662), (1374, 78885), (1753, 61830), (2061, 52590), (2290, 47331), (3435, 31554), (3506, 30915), (4122, 26295), (5259, 20610), (6183, 17530), (6870, 15777), (8765, 12366), (10305, 10518)]

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