About the Number

208972008

208972007 ← → 208972009

2進数表記:1100011101001010100011101000

漢数字表記:二億八百九十七万二千八

素因数分解:

2 3 × 3 3 × 7 1 × 138209 1

素因数の和:138231
約数の個数: 64
約数和(自身を含む): 663408000
約数和(自身を除く): 454435992

約数列:
[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 54, 56, 63, 72, 84, 108, 126, 168, 189, 216, 252, 378, 504, 756, 1512, 138209, 276418, 414627, 552836, 829254, 967463, 1105672, 1243881, 1658508, 1934926, 2487762, 2902389, 3317016, 3731643, 3869852, 4975524, 5804778, 7463286, 7739704, 8707167, 9951048, 11609556, 14926572, 17414334, 23219112, 26121501, 29853144, 34828668, 52243002, 69657336, 104486004, 208972008]

約数ペア:
[(1, 208972008), (2, 104486004), (3, 69657336), (4, 52243002), (6, 34828668), (7, 29853144), (8, 26121501), (9, 23219112), (12, 17414334), (14, 14926572), (18, 11609556), (21, 9951048), (24, 8707167), (27, 7739704), (28, 7463286), (36, 5804778), (42, 4975524), (54, 3869852), (56, 3731643), (63, 3317016), (72, 2902389), (84, 2487762), (108, 1934926), (126, 1658508), (168, 1243881), (189, 1105672), (216, 967463), (252, 829254), (378, 552836), (504, 414627), (756, 276418), (1512, 138209)]

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