19941550

素因数分解:

$2^1\times 5^2\times {\mathrm{109}}^1\times {\mathrm{3659}}^1$

素因数の和:3780

約数の個数: 24

約数和(自身を含む): 37441800

約数和(自身を除く): 17500250

約数列:

[1, 2, 5, 10, 25, 50, 109, 218, 545, 1090, 2725, 3659, 5450, 7318, 18295, 36590, 91475, 182950, 398831, 797662, 1994155, 3988310, 9970775, 19941550]

約数ペア:

[(1, 19941550), (2, 9970775), (5, 3988310), (10, 1994155), (25, 797662), (50, 398831), (109, 182950), (218, 91475), (545, 36590), (1090, 18295), (2725, 7318), (3659, 5450)]