20640802565

素因数分解:

$5^1\times {\mathrm{53}}^1\times {\mathrm{1279}}^1\times {\mathrm{60899}}^1$

素因数の和:62236

約数の個数: 16

約数和(自身を含む): 25256448000

約数和(自身を除く): 4615645435

約数列:

[1, 5, 53, 265, 1279, 6395, 60899, 67787, 304495, 338935, 3227647, 16138235, 77889821, 389449105, 4128160513, 20640802565]

約数ペア:

[(1, 20640802565), (5, 4128160513), (53, 389449105), (265, 77889821), (1279, 16138235), (6395, 3227647), (60899, 338935), (67787, 304495)]