20016.0000000

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{13007}}^1$

素因数の和:13055

約数の個数: 16

約数和(自身を含む): 9834048

約数和(自身を除く): 4501178

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 13007, 26014, 65035, 130070, 533287, 1066574, 2666435, 5332870]

約数ペア:

[(1, 5332870), (2, 2666435), (5, 1066574), (10, 533287), (41, 130070), (82, 65035), (205, 26014), (410, 13007)]