19729340

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{9767}}^1$

素因数の和:9877

約数の個数: 24

約数和(自身を含む): 41846112

約数和(自身を除く): 22116772

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 9767, 19534, 39068, 48835, 97670, 195340, 986467, 1972934, 3945868, 4932335, 9864670, 19729340]

約数ペア:

[(1, 19729340), (2, 9864670), (4, 4932335), (5, 3945868), (10, 1972934), (20, 986467), (101, 195340), (202, 97670), (404, 48835), (505, 39068), (1010, 19534), (2020, 9767)]