12900475

素因数分解:

$5^2\times 7^2\times {\mathrm{10531}}^1$

素因数の和:10555

約数の個数: 18

約数和(自身を含む): 18610044

約数和(自身を除く): 5709569

約数列:

[1, 5, 7, 25, 35, 49, 175, 245, 1225, 10531, 52655, 73717, 263275, 368585, 516019, 1842925, 2580095, 12900475]

約数ペア:

[(1, 12900475), (5, 2580095), (7, 1842925), (25, 516019), (35, 368585), (49, 263275), (175, 73717), (245, 52655), (1225, 10531)]