209370820

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{126127}}^1$

素因数の和:126219

約数の個数: 24

約数和(自身を含む): 444979584

約数和(自身を除く): 235608764

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 126127, 252254, 504508, 630635, 1261270, 2522540, 10468541, 20937082, 41874164, 52342705, 104685410, 209370820]

約数ペア:

[(1, 209370820), (2, 104685410), (4, 52342705), (5, 41874164), (10, 20937082), (20, 10468541), (83, 2522540), (166, 1261270), (332, 630635), (415, 504508), (830, 252254), (1660, 126127)]