18028675

素因数分解:

$5^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1451}}^1$

素因数の和:1539

約数の個数: 24

約数和(自身を含む): 25926912

約数和(自身を除く): 7898237

約数列:

[1, 5, 7, 25, 35, 71, 175, 355, 497, 1451, 1775, 2485, 7255, 10157, 12425, 36275, 50785, 103021, 253925, 515105, 721147, 2575525, 3605735, 18028675]

約数ペア:

[(1, 18028675), (5, 3605735), (7, 2575525), (25, 721147), (35, 515105), (71, 253925), (175, 103021), (355, 50785), (497, 36275), (1451, 12425), (1775, 10157), (2485, 7255)]