289535260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2068109}}^1$

素因数の和:2068125

約数の個数: 24

約数和(自身を含む): 694884960

約数和(自身を除く): 405349700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2068109, 4136218, 8272436, 10340545, 14476763, 20681090, 28953526, 41362180, 57907052, 72383815, 144767630, 289535260]

約数ペア:

[(1, 289535260), (2, 144767630), (4, 72383815), (5, 57907052), (7, 41362180), (10, 28953526), (14, 20681090), (20, 14476763), (28, 10340545), (35, 8272436), (70, 4136218), (140, 2068109)]