20784718545

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{277}}^1\times {\mathrm{11447}}^1$

素因数の和:11774

約数の個数: 64

約数和(自身を含む): 36662906880

約数和(自身を除く): 15878188335

約数列:

[1, 3, 5, 15, 19, 23, 57, 69, 95, 115, 277, 285, 345, 437, 831, 1311, 1385, 2185, 4155, 5263, 6371, 6555, 11447, 15789, 19113, 26315, 31855, 34341, 57235, 78945, 95565, 121049, 171705, 217493, 263281, 363147, 605245, 652479, 789843, 1087465, 1316405, 1815735, 3170819, 3262395, 3949215, 5002339, 9512457, 15007017, 15854095, 25011695, 47562285, 60245561, 72928837, 75035085, 180736683, 218786511, 301227805, 364644185, 903683415, 1093932555, 1385647903, 4156943709, 6928239515, 20784718545]

約数ペア:

[(1, 20784718545), (3, 6928239515), (5, 4156943709), (15, 1385647903), (19, 1093932555), (23, 903683415), (57, 364644185), (69, 301227805), (95, 218786511), (115, 180736683), (277, 75035085), (285, 72928837), (345, 60245561), (437, 47562285), (831, 25011695), (1311, 15854095), (1385, 15007017), (2185, 9512457), (4155, 5002339), (5263, 3949215), (6371, 3262395), (6555, 3170819), (11447, 1815735), (15789, 1316405), (19113, 1087465), (26315, 789843), (31855, 652479), (34341, 605245), (57235, 363147), (78945, 263281), (95565, 217493), (121049, 171705)]