19880525

素因数分解:

$5^2\times 7^2\times {\mathrm{16229}}^1$

素因数の和:16253

約数の個数: 18

約数和(自身を含む): 28678410

約数和(自身を除く): 8797885

約数列:

[1, 5, 7, 25, 35, 49, 175, 245, 1225, 16229, 81145, 113603, 405725, 568015, 795221, 2840075, 3976105, 19880525]

約数ペア:

[(1, 19880525), (5, 3976105), (7, 2840075), (25, 795221), (35, 568015), (49, 405725), (175, 113603), (245, 81145), (1225, 16229)]