208113380

素因数分解:

$2^2\times 5^1\times {\mathrm{643}}^1\times {\mathrm{16183}}^1$

素因数の和:16835

約数の個数: 24

約数和(自身を含む): 437744832

約数和(自身を除く): 229631452

約数列:

[1, 2, 4, 5, 10, 20, 643, 1286, 2572, 3215, 6430, 12860, 16183, 32366, 64732, 80915, 161830, 323660, 10405669, 20811338, 41622676, 52028345, 104056690, 208113380]

約数ペア:

[(1, 208113380), (2, 104056690), (4, 52028345), (5, 41622676), (10, 20811338), (20, 10405669), (643, 323660), (1286, 161830), (2572, 80915), (3215, 64732), (6430, 32366), (12860, 16183)]