20123997678

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{173}}^1\times {\mathrm{1097}}^1$

素因数の和:1458

約数の個数: 96

約数和(自身を含む): 45242642016

約数和(自身を除く): 25118644338

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 129, 137, 173, 258, 274, 346, 387, 411, 519, 774, 822, 1038, 1097, 1233, 1557, 2194, 2466, 3114, 3291, 5891, 6582, 7439, 9873, 11782, 14878, 17673, 19746, 22317, 23701, 35346, 44634, 47171, 47402, 53019, 66951, 71103, 94342, 106038, 133902, 141513, 142206, 150289, 189781, 213309, 283026, 300578, 379562, 424539, 426618, 450867, 569343, 849078, 901734, 1019143, 1138686, 1352601, 1708029, 2038286, 2705202, 3057429, 3416058, 6114858, 6462427, 8160583, 9172287, 12924854, 16321166, 18344574, 19387281, 24481749, 25999997, 38774562, 48963498, 51999994, 58161843, 73445247, 77999991, 116323686, 146890494, 155999982, 233999973, 467999946, 1117999871, 2235999742, 3353999613, 6707999226, 10061998839, 20123997678]

約数ペア:

[(1, 20123997678), (2, 10061998839), (3, 6707999226), (6, 3353999613), (9, 2235999742), (18, 1117999871), (43, 467999946), (86, 233999973), (129, 155999982), (137, 146890494), (173, 116323686), (258, 77999991), (274, 73445247), (346, 58161843), (387, 51999994), (411, 48963498), (519, 38774562), (774, 25999997), (822, 24481749), (1038, 19387281), (1097, 18344574), (1233, 16321166), (1557, 12924854), (2194, 9172287), (2466, 8160583), (3114, 6462427), (3291, 6114858), (5891, 3416058), (6582, 3057429), (7439, 2705202), (9873, 2038286), (11782, 1708029), (14878, 1352601), (17673, 1138686), (19746, 1019143), (22317, 901734), (23701, 849078), (35346, 569343), (44634, 450867), (47171, 426618), (47402, 424539), (53019, 379562), (66951, 300578), (71103, 283026), (94342, 213309), (106038, 189781), (133902, 150289), (141513, 142206)]