20008016

素因数分解:

$2^4\times 7^1\times {\mathrm{178643}}^1$

素因数の和:178658

約数の個数: 20

約数和(自身を含む): 44303712

約数和(自身を除く): 24295696

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 178643, 357286, 714572, 1250501, 1429144, 2501002, 2858288, 5002004, 10004008, 20008016]

約数ペア:

[(1, 20008016), (2, 10004008), (4, 5002004), (7, 2858288), (8, 2501002), (14, 1429144), (16, 1250501), (28, 714572), (56, 357286), (112, 178643)]