205832420

素因数分解:

$2^2\times 5^1\times {\mathrm{1571}}^1\times {\mathrm{6551}}^1$

素因数の和:8131

約数の個数: 24

約数和(自身を含む): 432589248

約数和(自身を除く): 226756828

約数列:

[1, 2, 4, 5, 10, 20, 1571, 3142, 6284, 6551, 7855, 13102, 15710, 26204, 31420, 32755, 65510, 131020, 10291621, 20583242, 41166484, 51458105, 102916210, 205832420]

約数ペア:

[(1, 205832420), (2, 102916210), (4, 51458105), (5, 41166484), (10, 20583242), (20, 10291621), (1571, 131020), (3142, 65510), (6284, 32755), (6551, 31420), (7855, 26204), (13102, 15710)]