20780268

素因数分解:

$2^2\times 3^1\times {\mathrm{131}}^1\times {\mathrm{13219}}^1$

素因数の和:13357

約数の個数: 24

約数和(自身を含む): 48861120

約数和(自身を除く): 28080852

約数列:

[1, 2, 3, 4, 6, 12, 131, 262, 393, 524, 786, 1572, 13219, 26438, 39657, 52876, 79314, 158628, 1731689, 3463378, 5195067, 6926756, 10390134, 20780268]

約数ペア:

[(1, 20780268), (2, 10390134), (3, 6926756), (4, 5195067), (6, 3463378), (12, 1731689), (131, 158628), (262, 79314), (393, 52876), (524, 39657), (786, 26438), (1572, 13219)]