About the Number

131296256

131296255 ← → 131296257

2進数表記:111110100110110110000000000

漢数字表記:一億三千百二十九万六千二百五十六

素因数分解:

2 10 × 7 1 × 13 1 × 1409 1

素因数の和:1449
約数の個数: 88
約数和(自身を含む): 323262240
約数和(自身を除く): 191965984

約数列:
[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 91, 104, 112, 128, 182, 208, 224, 256, 364, 416, 448, 512, 728, 832, 896, 1024, 1409, 1456, 1664, 1792, 2818, 2912, 3328, 3584, 5636, 5824, 6656, 7168, 9863, 11272, 11648, 13312, 18317, 19726, 22544, 23296, 36634, 39452, 45088, 46592, 73268, 78904, 90176, 93184, 128219, 146536, 157808, 180352, 256438, 293072, 315616, 360704, 512876, 586144, 631232, 721408, 1025752, 1172288, 1262464, 1442816, 2051504, 2344576, 2524928, 4103008, 4689152, 5049856, 8206016, 9378304, 10099712, 16412032, 18756608, 32824064, 65648128, 131296256]

約数ペア:
[(1, 131296256), (2, 65648128), (4, 32824064), (7, 18756608), (8, 16412032), (13, 10099712), (14, 9378304), (16, 8206016), (26, 5049856), (28, 4689152), (32, 4103008), (52, 2524928), (56, 2344576), (64, 2051504), (91, 1442816), (104, 1262464), (112, 1172288), (128, 1025752), (182, 721408), (208, 631232), (224, 586144), (256, 512876), (364, 360704), (416, 315616), (448, 293072), (512, 256438), (728, 180352), (832, 157808), (896, 146536), (1024, 128219), (1409, 93184), (1456, 90176), (1664, 78904), (1792, 73268), (2818, 46592), (2912, 45088), (3328, 39452), (3584, 36634), (5636, 23296), (5824, 22544), (6656, 19726), (7168, 18317), (9863, 13312), (11272, 11648)]

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