490492820

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{187211}}^1$

素因数の和:187351

約数の個数: 24

約数和(自身を含む): 1037903328

約数和(自身を除く): 547410508

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 187211, 374422, 748844, 936055, 1872110, 3744220, 24524641, 49049282, 98098564, 122623205, 245246410, 490492820]

約数ペア:

[(1, 490492820), (2, 245246410), (4, 122623205), (5, 98098564), (10, 49049282), (20, 24524641), (131, 3744220), (262, 1872110), (524, 936055), (655, 748844), (1310, 374422), (2620, 187211)]