218103620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1557883}}^1$

素因数の和:1557899

約数の個数: 24

約数和(自身を含む): 523449024

約数和(自身を除く): 305345404

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1557883, 3115766, 6231532, 7789415, 10905181, 15578830, 21810362, 31157660, 43620724, 54525905, 109051810, 218103620]

約数ペア:

[(1, 218103620), (2, 109051810), (4, 54525905), (5, 43620724), (7, 31157660), (10, 21810362), (14, 15578830), (20, 10905181), (28, 7789415), (35, 6231532), (70, 3115766), (140, 1557883)]