2218825

素因数分解:

$5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{409}}^1$

素因数の和:457

約数の個数: 24

約数和(自身を含む): 3253760

約数和(自身を除く): 1034935

約数列:

[1, 5, 7, 25, 31, 35, 155, 175, 217, 409, 775, 1085, 2045, 2863, 5425, 10225, 12679, 14315, 63395, 71575, 88753, 316975, 443765, 2218825]

約数ペア:

[(1, 2218825), (5, 443765), (7, 316975), (25, 88753), (31, 71575), (35, 63395), (155, 14315), (175, 12679), (217, 10225), (409, 5425), (775, 2863), (1085, 2045)]