164078440

素因数分解:

$2^3\times 5^1\times {\mathrm{4101961}}^1$

素因数の和:4101972

約数の個数: 16

約数和(自身を含む): 369176580

約数和(自身を除く): 205098140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4101961, 8203922, 16407844, 20509805, 32815688, 41019610, 82039220, 164078440]

約数ペア:

[(1, 164078440), (2, 82039220), (4, 41019610), (5, 32815688), (8, 20509805), (10, 16407844), (20, 8203922), (40, 4101961)]