20156164940

素因数分解:

$2^2\times 5^1\times {\mathrm{4049}}^1\times {\mathrm{248903}}^1$

素因数の和:252961

約数の個数: 24

約数和(自身を含む): 42338570400

約数和(自身を除く): 22182405460

約数列:

[1, 2, 4, 5, 10, 20, 4049, 8098, 16196, 20245, 40490, 80980, 248903, 497806, 995612, 1244515, 2489030, 4978060, 1007808247, 2015616494, 4031232988, 5039041235, 10078082470, 20156164940]

約数ペア:

[(1, 20156164940), (2, 10078082470), (4, 5039041235), (5, 4031232988), (10, 2015616494), (20, 1007808247), (4049, 4978060), (8098, 2489030), (16196, 1244515), (20245, 995612), (40490, 497806), (80980, 248903)]