78890245

素因数分解:

$5^1\times 7^2\times {\mathrm{322001}}^1$

素因数の和:322020

約数の個数: 12

約数和(自身を含む): 110124684

約数和(自身を除く): 31234439

約数列:

[1, 5, 7, 35, 49, 245, 322001, 1610005, 2254007, 11270035, 15778049, 78890245]

約数ペア:

[(1, 78890245), (5, 15778049), (7, 11270035), (35, 2254007), (49, 1610005), (245, 322001)]