28565860

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{10903}}^1$

素因数の和:11043

約数の個数: 24

約数和(自身を含む): 60451776

約数和(自身を除く): 31885916

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 10903, 21806, 43612, 54515, 109030, 218060, 1428293, 2856586, 5713172, 7141465, 14282930, 28565860]

約数ペア:

[(1, 28565860), (2, 14282930), (4, 7141465), (5, 5713172), (10, 2856586), (20, 1428293), (131, 218060), (262, 109030), (524, 54515), (655, 43612), (1310, 21806), (2620, 10903)]