28785785

素因数分解:

$5^1\times 7^2\times {\mathrm{293}}^1\times {\mathrm{401}}^1$

素因数の和:713

約数の個数: 24

約数和(自身を含む): 40420296

約数和(自身を除く): 11634511

約数列:

[1, 5, 7, 35, 49, 245, 293, 401, 1465, 2005, 2051, 2807, 10255, 14035, 14357, 19649, 71785, 98245, 117493, 587465, 822451, 4112255, 5757157, 28785785]

約数ペア:

[(1, 28785785), (5, 5757157), (7, 4112255), (35, 822451), (49, 587465), (245, 117493), (293, 98245), (401, 71785), (1465, 19649), (2005, 14357), (2051, 14035), (2807, 10255)]