20278330730

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{289690439}}^1$

素因数の和:289690453

約数の個数: 16

約数和(自身を含む): 41715423360

約数和(自身を除く): 21437092630

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 289690439, 579380878, 1448452195, 2027833073, 2896904390, 4055666146, 10139165365, 20278330730]

約数ペア:

[(1, 20278330730), (2, 10139165365), (5, 4055666146), (7, 2896904390), (10, 2027833073), (14, 1448452195), (35, 579380878), (70, 289690439)]