20879140

素因数分解:

$2^2\times 5^1\times {\mathrm{907}}^1\times {\mathrm{1151}}^1$

素因数の和:2067

約数の個数: 24

約数和(自身を含む): 43932672

約数和(自身を除く): 23053532

約数列:

[1, 2, 4, 5, 10, 20, 907, 1151, 1814, 2302, 3628, 4535, 4604, 5755, 9070, 11510, 18140, 23020, 1043957, 2087914, 4175828, 5219785, 10439570, 20879140]

約数ペア:

[(1, 20879140), (2, 10439570), (4, 5219785), (5, 4175828), (10, 2087914), (20, 1043957), (907, 23020), (1151, 18140), (1814, 11510), (2302, 9070), (3628, 5755), (4535, 4604)]