258785930

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1990661}}^1$

素因数の和:1990681

約数の個数: 16

約数和(自身を含む): 501646824

約数和(自身を除く): 242860894

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 1990661, 3981322, 9953305, 19906610, 25878593, 51757186, 129392965, 258785930]

約数ペア:

[(1, 258785930), (2, 129392965), (5, 51757186), (10, 25878593), (13, 19906610), (26, 9953305), (65, 3981322), (130, 1990661)]