1999838506990

素因数分解:

$2^1\times 5^1\times {\mathrm{691151}}^1\times {\mathrm{289349}}^1$

素因数の和:980507

約数の個数: 16

約数和(自身を含む): 3599726961600

約数和(自身を除く): 1599888454610

約数列:

[1, 2, 5, 10, 289349, 578698, 691151, 1382302, 1446745, 2893490, 3455755, 6911510, 199983850699, 399967701398, 999919253495, 1999838506990]

約数ペア:

[(1, 1999838506990), (2, 999919253495), (5, 399967701398), (10, 199983850699), (289349, 6911510), (578698, 3455755), (691151, 2893490), (1382302, 1446745)]