66658780

素因数分解:

$2^2\times 5^1\times {\mathrm{1597}}^1\times {\mathrm{2087}}^1$

素因数の和:3693

約数の個数: 24

約数和(自身を含む): 140138208

約数和(自身を除く): 73479428

約数列:

[1, 2, 4, 5, 10, 20, 1597, 2087, 3194, 4174, 6388, 7985, 8348, 10435, 15970, 20870, 31940, 41740, 3332939, 6665878, 13331756, 16664695, 33329390, 66658780]

約数ペア:

[(1, 66658780), (2, 33329390), (4, 16664695), (5, 13331756), (10, 6665878), (20, 3332939), (1597, 41740), (2087, 31940), (3194, 20870), (4174, 15970), (6388, 10435), (7985, 8348)]