65005420

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{29819}}^1$

素因数の和:29937

約数の個数: 24

約数和(自身を含む): 137768400

約数和(自身を除く): 72762980

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 29819, 59638, 119276, 149095, 298190, 596380, 3250271, 6500542, 13001084, 16251355, 32502710, 65005420]

約数ペア:

[(1, 65005420), (2, 32502710), (4, 16251355), (5, 13001084), (10, 6500542), (20, 3250271), (109, 596380), (218, 298190), (436, 149095), (545, 119276), (1090, 59638), (2180, 29819)]