28609325

素因数分解:

$5^2\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{197}}^1$

素因数の和:401

約数の個数: 24

約数和(自身を含む): 36852552

約数和(自身を除く): 8243227

約数列:

[1, 5, 25, 37, 157, 185, 197, 785, 925, 985, 3925, 4925, 5809, 7289, 29045, 30929, 36445, 145225, 154645, 182225, 773225, 1144373, 5721865, 28609325]

約数ペア:

[(1, 28609325), (5, 5721865), (25, 1144373), (37, 773225), (157, 182225), (185, 154645), (197, 145225), (785, 36445), (925, 30929), (985, 29045), (3925, 7289), (4925, 5809)]