39199780

素因数分解:

$2^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{4937}}^1$

素因数の和:5343

約数の個数: 24

約数和(自身を含む): 82543608

約数和(自身を除く): 43343828

約数列:

[1, 2, 4, 5, 10, 20, 397, 794, 1588, 1985, 3970, 4937, 7940, 9874, 19748, 24685, 49370, 98740, 1959989, 3919978, 7839956, 9799945, 19599890, 39199780]

約数ペア:

[(1, 39199780), (2, 19599890), (4, 9799945), (5, 7839956), (10, 3919978), (20, 1959989), (397, 98740), (794, 49370), (1588, 24685), (1985, 19748), (3970, 9874), (4937, 7940)]