400085

素因数分解:

$5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1$

素因数の和:113

約数の個数: 24

約数和(自身を含む): 590976

約数和(自身を除く): 190891

約数列:

[1, 5, 7, 23, 35, 49, 71, 115, 161, 245, 355, 497, 805, 1127, 1633, 2485, 3479, 5635, 8165, 11431, 17395, 57155, 80017, 400085]

約数ペア:

[(1, 400085), (5, 80017), (7, 57155), (23, 17395), (35, 11431), (49, 8165), (71, 5635), (115, 3479), (161, 2485), (245, 1633), (355, 1127), (497, 805)]