290501788

素因数分解:

$2^2\times {\mathrm{421}}^1\times {\mathrm{172507}}^1$

素因数の和:172932

約数の個数: 12

約数和(自身を含む): 509588632

約数和(自身を除く): 219086844

約数列:

[1, 2, 4, 421, 842, 1684, 172507, 345014, 690028, 72625447, 145250894, 290501788]

約数ペア:

[(1, 290501788), (2, 145250894), (4, 72625447), (421, 690028), (842, 345014), (1684, 172507)]