81072425

素因数分解:

$5^2\times 7^1\times {\mathrm{283}}^1\times {\mathrm{1637}}^1$

素因数の和:1937

約数の個数: 24

約数和(自身を含む): 115367616

約数和(自身を除く): 34295191

約数列:

[1, 5, 7, 25, 35, 175, 283, 1415, 1637, 1981, 7075, 8185, 9905, 11459, 40925, 49525, 57295, 286475, 463271, 2316355, 3242897, 11581775, 16214485, 81072425]

約数ペア:

[(1, 81072425), (5, 16214485), (7, 11581775), (25, 3242897), (35, 2316355), (175, 463271), (283, 286475), (1415, 57295), (1637, 49525), (1981, 40925), (7075, 11459), (8185, 9905)]