20802019945

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31281233}}^1$

素因数の和:31281264

約数の個数: 16

約数和(自身を含む): 30029984640

約数和(自身を除く): 9227964695

約数列:

[1, 5, 7, 19, 35, 95, 133, 665, 31281233, 156406165, 218968631, 594343427, 1094843155, 2971717135, 4160403989, 20802019945]

約数ペア:

[(1, 20802019945), (5, 4160403989), (7, 2971717135), (19, 1094843155), (35, 594343427), (95, 218968631), (133, 156406165), (665, 31281233)]