20129209945

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{317}}^1\times {\mathrm{976909}}^1$

素因数の和:977244

約数の個数: 16

約数和(自身を含む): 26095219920

約数和(自身を除く): 5966009975

約数列:

[1, 5, 13, 65, 317, 1585, 4121, 20605, 976909, 4884545, 12699817, 63499085, 309680153, 1548400765, 4025841989, 20129209945]

約数ペア:

[(1, 20129209945), (5, 4025841989), (13, 1548400765), (65, 309680153), (317, 63499085), (1585, 12699817), (4121, 4884545), (20605, 976909)]