42828205

素因数分解:

$5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{5639}}^1$

素因数の和:5689

約数の個数: 24

約数和(自身を含む): 61724160

約数和(自身を除く): 18895955

約数列:

[1, 5, 7, 31, 35, 49, 155, 217, 245, 1085, 1519, 5639, 7595, 28195, 39473, 174809, 197365, 276311, 874045, 1223663, 1381555, 6118315, 8565641, 42828205]

約数ペア:

[(1, 42828205), (5, 8565641), (7, 6118315), (31, 1381555), (35, 1223663), (49, 874045), (155, 276311), (217, 197365), (245, 174809), (1085, 39473), (1519, 28195), (5639, 7595)]