About the Number

128340772

128340771 ← → 128340773

2進数表記:111101001100101001100100100

漢数字表記:一億二千八百三十四万七百七十二

素因数分解:

2 2 × 7 1 × 53 1 × 197 1 × 439 1

素因数の和:700
約数の個数: 48
約数和(自身を含む): 263450880
約数和(自身を除く): 135110108

約数列:
[1, 2, 4, 7, 14, 28, 53, 106, 197, 212, 371, 394, 439, 742, 788, 878, 1379, 1484, 1756, 2758, 3073, 5516, 6146, 10441, 12292, 20882, 23267, 41764, 46534, 73087, 86483, 93068, 146174, 162869, 172966, 292348, 325738, 345932, 605381, 651476, 1210762, 2421524, 4583599, 9167198, 18334396, 32085193, 64170386, 128340772]

約数ペア:
[(1, 128340772), (2, 64170386), (4, 32085193), (7, 18334396), (14, 9167198), (28, 4583599), (53, 2421524), (106, 1210762), (197, 651476), (212, 605381), (371, 345932), (394, 325738), (439, 292348), (742, 172966), (788, 162869), (878, 146174), (1379, 93068), (1484, 86483), (1756, 73087), (2758, 46534), (3073, 41764), (5516, 23267), (6146, 20882), (10441, 12292)]

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