18918410

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{38609}}^1$

素因数の和:38630

約数の個数: 24

約数和(自身を含む): 39613860

約数和(自身を除く): 20695450

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 38609, 77218, 193045, 270263, 386090, 540526, 1351315, 1891841, 2702630, 3783682, 9459205, 18918410]

約数ペア:

[(1, 18918410), (2, 9459205), (5, 3783682), (7, 2702630), (10, 1891841), (14, 1351315), (35, 540526), (49, 386090), (70, 270263), (98, 193045), (245, 77218), (490, 38609)]