51564220

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{19681}}^1$

素因数の和:19821

約数の個数: 24

約数和(自身を含む): 109117008

約数和(自身を除く): 57552788

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 19681, 39362, 78724, 98405, 196810, 393620, 2578211, 5156422, 10312844, 12891055, 25782110, 51564220]

約数ペア:

[(1, 51564220), (2, 25782110), (4, 12891055), (5, 10312844), (10, 5156422), (20, 2578211), (131, 393620), (262, 196810), (524, 98405), (655, 78724), (1310, 39362), (2620, 19681)]