19490090

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{24671}}^1$

素因数の和:24757

約数の個数: 16

約数和(自身を含む): 35527680

約数和(自身を除く): 16037590

約数列:

[1, 2, 5, 10, 79, 158, 395, 790, 24671, 49342, 123355, 246710, 1949009, 3898018, 9745045, 19490090]

約数ペア:

[(1, 19490090), (2, 9745045), (5, 3898018), (10, 1949009), (79, 246710), (158, 123355), (395, 49342), (790, 24671)]