About the Number

131388928

131388927 ← → 131388929

2進数表記:111110101001101011000000000

漢数字表記:一億三千百三十八万八千九百二十八

素因数分解:

2 9 × 11 1 × 41 1 × 569 1

素因数の和:639
約数の個数: 80
約数和(自身を含む): 293887440
約数和(自身を除く): 162498512

約数列:
[1, 2, 4, 8, 11, 16, 22, 32, 41, 44, 64, 82, 88, 128, 164, 176, 256, 328, 352, 451, 512, 569, 656, 704, 902, 1138, 1312, 1408, 1804, 2276, 2624, 2816, 3608, 4552, 5248, 5632, 6259, 7216, 9104, 10496, 12518, 14432, 18208, 20992, 23329, 25036, 28864, 36416, 46658, 50072, 57728, 72832, 93316, 100144, 115456, 145664, 186632, 200288, 230912, 256619, 291328, 373264, 400576, 513238, 746528, 801152, 1026476, 1493056, 1602304, 2052952, 2986112, 3204608, 4105904, 5972224, 8211808, 11944448, 16423616, 32847232, 65694464, 131388928]

約数ペア:
[(1, 131388928), (2, 65694464), (4, 32847232), (8, 16423616), (11, 11944448), (16, 8211808), (22, 5972224), (32, 4105904), (41, 3204608), (44, 2986112), (64, 2052952), (82, 1602304), (88, 1493056), (128, 1026476), (164, 801152), (176, 746528), (256, 513238), (328, 400576), (352, 373264), (451, 291328), (512, 256619), (569, 230912), (656, 200288), (704, 186632), (902, 145664), (1138, 115456), (1312, 100144), (1408, 93316), (1804, 72832), (2276, 57728), (2624, 50072), (2816, 46658), (3608, 36416), (4552, 28864), (5248, 25036), (5632, 23329), (6259, 20992), (7216, 18208), (9104, 14432), (10496, 12518)]

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