209585375

素因数分解:

$5^3\times {\mathrm{83}}^1\times {\mathrm{20201}}^1$

素因数の和:20299

約数の個数: 16

約数和(自身を含む): 264727008

約数和(自身を除く): 55141633

約数列:

[1, 5, 25, 83, 125, 415, 2075, 10375, 20201, 101005, 505025, 1676683, 2525125, 8383415, 41917075, 209585375]

約数ペア:

[(1, 209585375), (5, 41917075), (25, 8383415), (83, 2525125), (125, 1676683), (415, 505025), (2075, 101005), (10375, 20201)]