128905525

素因数分解:

$5^2\times 7^2\times {\mathrm{105229}}^1$

素因数の和:105253

約数の個数: 18

約数和(自身を含む): 185941410

約数和(自身を除く): 57035885

約数列:

[1, 5, 7, 25, 35, 49, 175, 245, 1225, 105229, 526145, 736603, 2630725, 3683015, 5156221, 18415075, 25781105, 128905525]

約数ペア:

[(1, 128905525), (5, 25781105), (7, 18415075), (25, 5156221), (35, 3683015), (49, 2630725), (175, 736603), (245, 526145), (1225, 105229)]