2642980

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{1283}}^1$

素因数の和:1395

約数の個数: 24

約数和(自身を含む): 5608512

約数和(自身を除く): 2965532

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 1283, 2060, 2566, 5132, 6415, 12830, 25660, 132149, 264298, 528596, 660745, 1321490, 2642980]

約数ペア:

[(1, 2642980), (2, 1321490), (4, 660745), (5, 528596), (10, 264298), (20, 132149), (103, 25660), (206, 12830), (412, 6415), (515, 5132), (1030, 2566), (1283, 2060)]