About the Number

81010688

81010687 ← → 81010689

2進数表記:100110101000010000000000000

漢数字表記:八千百一万六百八十八

素因数分解:

2 13 × 11 1 × 29 1 × 31 1

素因数の和:97
約数の個数: 112
約数和(自身を含む): 188732160
約数和(自身を除く): 107721472

約数列:
[1, 2, 4, 8, 11, 16, 22, 29, 31, 32, 44, 58, 62, 64, 88, 116, 124, 128, 176, 232, 248, 256, 319, 341, 352, 464, 496, 512, 638, 682, 704, 899, 928, 992, 1024, 1276, 1364, 1408, 1798, 1856, 1984, 2048, 2552, 2728, 2816, 3596, 3712, 3968, 4096, 5104, 5456, 5632, 7192, 7424, 7936, 8192, 9889, 10208, 10912, 11264, 14384, 14848, 15872, 19778, 20416, 21824, 22528, 28768, 29696, 31744, 39556, 40832, 43648, 45056, 57536, 59392, 63488, 79112, 81664, 87296, 90112, 115072, 118784, 126976, 158224, 163328, 174592, 230144, 237568, 253952, 316448, 326656, 349184, 460288, 632896, 653312, 698368, 920576, 1265792, 1306624, 1396736, 1841152, 2531584, 2613248, 2793472, 3682304, 5063168, 7364608, 10126336, 20252672, 40505344, 81010688]

約数ペア:
[(1, 81010688), (2, 40505344), (4, 20252672), (8, 10126336), (11, 7364608), (16, 5063168), (22, 3682304), (29, 2793472), (31, 2613248), (32, 2531584), (44, 1841152), (58, 1396736), (62, 1306624), (64, 1265792), (88, 920576), (116, 698368), (124, 653312), (128, 632896), (176, 460288), (232, 349184), (248, 326656), (256, 316448), (319, 253952), (341, 237568), (352, 230144), (464, 174592), (496, 163328), (512, 158224), (638, 126976), (682, 118784), (704, 115072), (899, 90112), (928, 87296), (992, 81664), (1024, 79112), (1276, 63488), (1364, 59392), (1408, 57536), (1798, 45056), (1856, 43648), (1984, 40832), (2048, 39556), (2552, 31744), (2728, 29696), (2816, 28768), (3596, 22528), (3712, 21824), (3968, 20416), (4096, 19778), (5104, 15872), (5456, 14848), (5632, 14384), (7192, 11264), (7424, 10912), (7936, 10208), (8192, 9889)]

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