2013625

素因数分解:

$5^3\times {\mathrm{89}}^1\times {\mathrm{181}}^1$

素因数の和:285

約数の個数: 16

約数和(自身を含む): 2555280

約数和(自身を除く): 541655

約数列:

[1, 5, 25, 89, 125, 181, 445, 905, 2225, 4525, 11125, 16109, 22625, 80545, 402725, 2013625]

約数ペア:

[(1, 2013625), (5, 402725), (25, 80545), (89, 22625), (125, 16109), (181, 11125), (445, 4525), (905, 2225)]