638317270

素因数分解:

$2^1\times 5^1\times {\mathrm{4909}}^1\times {\mathrm{13003}}^1$

素因数の和:17919

約数の個数: 16

約数和(自身を含む): 1149293520

約数和(自身を除く): 510976250

約数列:

[1, 2, 5, 10, 4909, 9818, 13003, 24545, 26006, 49090, 65015, 130030, 63831727, 127663454, 319158635, 638317270]

約数ペア:

[(1, 638317270), (2, 319158635), (5, 127663454), (10, 63831727), (4909, 130030), (9818, 65015), (13003, 49090), (24545, 26006)]