28073725

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{449}}^1$

素因数の和:561

約数の個数: 24

約数和(自身を含む): 36325800

約数和(自身を除く): 8252075

約数列:

[1, 5, 25, 41, 61, 205, 305, 449, 1025, 1525, 2245, 2501, 11225, 12505, 18409, 27389, 62525, 92045, 136945, 460225, 684725, 1122949, 5614745, 28073725]

約数ペア:

[(1, 28073725), (5, 5614745), (25, 1122949), (41, 684725), (61, 460225), (205, 136945), (305, 92045), (449, 62525), (1025, 27389), (1525, 18409), (2245, 12505), (2501, 11225)]