388419910

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{78787}}^1$

素因数の和:78840

約数の個数: 32

約数和(自身を含む): 765819360

約数和(自身を除く): 377399450

約数列:

[1, 2, 5, 10, 17, 29, 34, 58, 85, 145, 170, 290, 493, 986, 2465, 4930, 78787, 157574, 393935, 787870, 1339379, 2284823, 2678758, 4569646, 6696895, 11424115, 13393790, 22848230, 38841991, 77683982, 194209955, 388419910]

約数ペア:

[(1, 388419910), (2, 194209955), (5, 77683982), (10, 38841991), (17, 22848230), (29, 13393790), (34, 11424115), (58, 6696895), (85, 4569646), (145, 2678758), (170, 2284823), (290, 1339379), (493, 787870), (986, 393935), (2465, 157574), (4930, 78787)]