19806340

素因数分解:

$2^2\times 5^1\times {\mathrm{563}}^1\times {\mathrm{1759}}^1$

素因数の和:2331

約数の個数: 24

約数和(自身を含む): 41690880

約数和(自身を除く): 21884540

約数列:

[1, 2, 4, 5, 10, 20, 563, 1126, 1759, 2252, 2815, 3518, 5630, 7036, 8795, 11260, 17590, 35180, 990317, 1980634, 3961268, 4951585, 9903170, 19806340]

約数ペア:

[(1, 19806340), (2, 9903170), (4, 4951585), (5, 3961268), (10, 1980634), (20, 990317), (563, 35180), (1126, 17590), (1759, 11260), (2252, 8795), (2815, 7036), (3518, 5630)]