123098980

素因数分解:

$2^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{15349}}^1$

素因数の和:15759

約数の個数: 24

約数和(自身を含む): 259169400

約数和(自身を除く): 136070420

約数列:

[1, 2, 4, 5, 10, 20, 401, 802, 1604, 2005, 4010, 8020, 15349, 30698, 61396, 76745, 153490, 306980, 6154949, 12309898, 24619796, 30774745, 61549490, 123098980]

約数ペア:

[(1, 123098980), (2, 61549490), (4, 30774745), (5, 24619796), (10, 12309898), (20, 6154949), (401, 306980), (802, 153490), (1604, 76745), (2005, 61396), (4010, 30698), (8020, 15349)]