20808830

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{42467}}^1$

素因数の和:42488

約数の個数: 24

約数和(自身を含む): 43572168

約数和(自身を除く): 22763338

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 42467, 84934, 212335, 297269, 424670, 594538, 1486345, 2080883, 2972690, 4161766, 10404415, 20808830]

約数ペア:

[(1, 20808830), (2, 10404415), (5, 4161766), (7, 2972690), (10, 2080883), (14, 1486345), (35, 594538), (49, 424670), (70, 297269), (98, 212335), (245, 84934), (490, 42467)]