19682020

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{42787}}^1$

素因数の和:42819

約数の個数: 24

約数和(自身を含む): 43130304

約数和(自身を除く): 23448284

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 42787, 85574, 171148, 213935, 427870, 855740, 984101, 1968202, 3936404, 4920505, 9841010, 19682020]

約数ペア:

[(1, 19682020), (2, 9841010), (4, 4920505), (5, 3936404), (10, 1968202), (20, 984101), (23, 855740), (46, 427870), (92, 213935), (115, 171148), (230, 85574), (460, 42787)]