9895990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{76123}}^1$

素因数の和:76143

約数の個数: 16

約数和(自身を含む): 19183248

約数和(自身を除く): 9287258

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 76123, 152246, 380615, 761230, 989599, 1979198, 4947995, 9895990]

約数ペア:

[(1, 9895990), (2, 4947995), (5, 1979198), (10, 989599), (13, 761230), (26, 380615), (65, 152246), (130, 76123)]