About the Number

129128272

129128271 ← → 129128273

2進数表記:111101100100101011101010000

漢数字表記:一億二千九百十二万八千二百七十二

素因数分解:

2 4 × 7 1 × 13 1 × 131 1 × 677 1

素因数の和:836
約数の個数: 80
約数和(自身を含む): 310730112
約数和(自身を除く): 181601840

約数列:
[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 131, 182, 208, 262, 364, 524, 677, 728, 917, 1048, 1354, 1456, 1703, 1834, 2096, 2708, 3406, 3668, 4739, 5416, 6812, 7336, 8801, 9478, 10832, 11921, 13624, 14672, 17602, 18956, 23842, 27248, 35204, 37912, 47684, 61607, 70408, 75824, 88687, 95368, 123214, 140816, 177374, 190736, 246428, 354748, 492856, 620809, 709496, 985712, 1152931, 1241618, 1418992, 2305862, 2483236, 4611724, 4966472, 8070517, 9223448, 9932944, 16141034, 18446896, 32282068, 64564136, 129128272]

約数ペア:
[(1, 129128272), (2, 64564136), (4, 32282068), (7, 18446896), (8, 16141034), (13, 9932944), (14, 9223448), (16, 8070517), (26, 4966472), (28, 4611724), (52, 2483236), (56, 2305862), (91, 1418992), (104, 1241618), (112, 1152931), (131, 985712), (182, 709496), (208, 620809), (262, 492856), (364, 354748), (524, 246428), (677, 190736), (728, 177374), (917, 140816), (1048, 123214), (1354, 95368), (1456, 88687), (1703, 75824), (1834, 70408), (2096, 61607), (2708, 47684), (3406, 37912), (3668, 35204), (4739, 27248), (5416, 23842), (6812, 18956), (7336, 17602), (8801, 14672), (9478, 13624), (10832, 11921)]

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