61656940

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{28283}}^1$

素因数の和:28401

約数の個数: 24

約数和(自身を含む): 130672080

約数和(自身を除く): 69015140

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 28283, 56566, 113132, 141415, 282830, 565660, 3082847, 6165694, 12331388, 15414235, 30828470, 61656940]

約数ペア:

[(1, 61656940), (2, 30828470), (4, 15414235), (5, 12331388), (10, 6165694), (20, 3082847), (109, 565660), (218, 282830), (436, 141415), (545, 113132), (1090, 56566), (2180, 28283)]