20208475

素因数分解:

$5^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{3121}}^1$

素因数の和:3175

約数の個数: 24

約数和(自身を含む): 29421728

約数和(自身を除く): 9213253

約数列:

[1, 5, 7, 25, 35, 37, 175, 185, 259, 925, 1295, 3121, 6475, 15605, 21847, 78025, 109235, 115477, 546175, 577385, 808339, 2886925, 4041695, 20208475]

約数ペア:

[(1, 20208475), (5, 4041695), (7, 2886925), (25, 808339), (35, 577385), (37, 546175), (175, 115477), (185, 109235), (259, 78025), (925, 21847), (1295, 15605), (3121, 6475)]