399990334

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{1097}}^1\times {\mathrm{5881}}^1$

素因数の和:7011

約数の個数: 16

約数和(自身を含む): 620009856

約数和(自身を除く): 220019522

約数列:

[1, 2, 31, 62, 1097, 2194, 5881, 11762, 34007, 68014, 182311, 364622, 6451457, 12902914, 199995167, 399990334]

約数ペア:

[(1, 399990334), (2, 199995167), (31, 12902914), (62, 6451457), (1097, 364622), (2194, 182311), (5881, 68014), (11762, 34007)]