20665684895

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{317}}^1\times {\mathrm{318007}}^1$

素因数の和:318370

約数の個数: 16

約数和(自身を含む): 25483889088

約数和(自身を除く): 4818204193

約数列:

[1, 5, 41, 205, 317, 1585, 12997, 64985, 318007, 1590035, 13038287, 65191435, 100808219, 504041095, 4133136979, 20665684895]

約数ペア:

[(1, 20665684895), (5, 4133136979), (41, 504041095), (205, 100808219), (317, 65191435), (1585, 13038287), (12997, 1590035), (64985, 318007)]