25396820

素因数分解:

$2^2\times 5^1\times {\mathrm{313}}^1\times {\mathrm{4057}}^1$

素因数の和:4379

約数の個数: 24

約数和(自身を含む): 53516904

約数和(自身を除く): 28120084

約数列:

[1, 2, 4, 5, 10, 20, 313, 626, 1252, 1565, 3130, 4057, 6260, 8114, 16228, 20285, 40570, 81140, 1269841, 2539682, 5079364, 6349205, 12698410, 25396820]

約数ペア:

[(1, 25396820), (2, 12698410), (4, 6349205), (5, 5079364), (10, 2539682), (20, 1269841), (313, 81140), (626, 40570), (1252, 20285), (1565, 16228), (3130, 8114), (4057, 6260)]