131328496

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{631387}}^1$

素因数の和:631408

約数の個数: 20

約数和(自身を含む): 274022392

約数和(自身を除く): 142693896

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 631387, 1262774, 2525548, 5051096, 8208031, 10102192, 16416062, 32832124, 65664248, 131328496]

約数ペア:

[(1, 131328496), (2, 65664248), (4, 32832124), (8, 16416062), (13, 10102192), (16, 8208031), (26, 5051096), (52, 2525548), (104, 1262774), (208, 631387)]