219873020

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{83921}}^1$

素因数の和:84061

約数の個数: 24

約数和(自身を含む): 465263568

約数和(自身を除く): 245390548

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 83921, 167842, 335684, 419605, 839210, 1678420, 10993651, 21987302, 43974604, 54968255, 109936510, 219873020]

約数ペア:

[(1, 219873020), (2, 109936510), (4, 54968255), (5, 43974604), (10, 21987302), (20, 10993651), (131, 1678420), (262, 839210), (524, 419605), (655, 335684), (1310, 167842), (2620, 83921)]