81456548

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{223}}^1\times {\mathrm{1723}}^1$

素因数の和:2003

約数の個数: 24

約数和(自身を含む): 145974528

約数和(自身を除く): 64517980

約数列:

[1, 2, 4, 53, 106, 212, 223, 446, 892, 1723, 3446, 6892, 11819, 23638, 47276, 91319, 182638, 365276, 384229, 768458, 1536916, 20364137, 40728274, 81456548]

約数ペア:

[(1, 81456548), (2, 40728274), (4, 20364137), (53, 1536916), (106, 768458), (212, 384229), (223, 365276), (446, 182638), (892, 91319), (1723, 47276), (3446, 23638), (6892, 11819)]