42904580

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{19681}}^1$

素因数の和:19799

約数の個数: 24

約数和(自身を含む): 90930840

約数和(自身を除く): 48026260

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 19681, 39362, 78724, 98405, 196810, 393620, 2145229, 4290458, 8580916, 10726145, 21452290, 42904580]

約数ペア:

[(1, 42904580), (2, 21452290), (4, 10726145), (5, 8580916), (10, 4290458), (20, 2145229), (109, 393620), (218, 196810), (436, 98405), (545, 78724), (1090, 39362), (2180, 19681)]