About the Number

121531904

121531903 ← → 121531905

2進数表記:111001111100110111000000000

漢数字表記:一億二千百五十三万千九百四

素因数分解:

2 9 × 13 1 × 19 1 × 31 2

素因数の和:112
約数の個数: 120
約数和(自身を含む): 284434920
約数和(自身を除く): 162903016

約数列:
[1, 2, 4, 8, 13, 16, 19, 26, 31, 32, 38, 52, 62, 64, 76, 104, 124, 128, 152, 208, 247, 248, 256, 304, 403, 416, 494, 496, 512, 589, 608, 806, 832, 961, 988, 992, 1178, 1216, 1612, 1664, 1922, 1976, 1984, 2356, 2432, 3224, 3328, 3844, 3952, 3968, 4712, 4864, 6448, 6656, 7657, 7688, 7904, 7936, 9424, 9728, 12493, 12896, 15314, 15376, 15808, 15872, 18259, 18848, 24986, 25792, 30628, 30752, 31616, 36518, 37696, 49972, 51584, 61256, 61504, 63232, 73036, 75392, 99944, 103168, 122512, 123008, 126464, 146072, 150784, 199888, 206336, 237367, 245024, 246016, 292144, 301568, 399776, 474734, 490048, 492032, 584288, 799552, 949468, 980096, 1168576, 1599104, 1898936, 1960192, 2337152, 3198208, 3797872, 3920384, 4674304, 6396416, 7595744, 9348608, 15191488, 30382976, 60765952, 121531904]

約数ペア:
[(1, 121531904), (2, 60765952), (4, 30382976), (8, 15191488), (13, 9348608), (16, 7595744), (19, 6396416), (26, 4674304), (31, 3920384), (32, 3797872), (38, 3198208), (52, 2337152), (62, 1960192), (64, 1898936), (76, 1599104), (104, 1168576), (124, 980096), (128, 949468), (152, 799552), (208, 584288), (247, 492032), (248, 490048), (256, 474734), (304, 399776), (403, 301568), (416, 292144), (494, 246016), (496, 245024), (512, 237367), (589, 206336), (608, 199888), (806, 150784), (832, 146072), (961, 126464), (988, 123008), (992, 122512), (1178, 103168), (1216, 99944), (1612, 75392), (1664, 73036), (1922, 63232), (1976, 61504), (1984, 61256), (2356, 51584), (2432, 49972), (3224, 37696), (3328, 36518), (3844, 31616), (3952, 30752), (3968, 30628), (4712, 25792), (4864, 24986), (6448, 18848), (6656, 18259), (7657, 15872), (7688, 15808), (7904, 15376), (7936, 15314), (9424, 12896), (9728, 12493)]

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