20410420

素因数分解:

$2^2\times 5^1\times {\mathrm{971}}^1\times {\mathrm{1051}}^1$

素因数の和:2031

約数の個数: 24

約数和(自身を含む): 42946848

約数和(自身を除く): 22536428

約数列:

[1, 2, 4, 5, 10, 20, 971, 1051, 1942, 2102, 3884, 4204, 4855, 5255, 9710, 10510, 19420, 21020, 1020521, 2041042, 4082084, 5102605, 10205210, 20410420]

約数ペア:

[(1, 20410420), (2, 10205210), (4, 5102605), (5, 4082084), (10, 2041042), (20, 1020521), (971, 21020), (1051, 19420), (1942, 10510), (2102, 9710), (3884, 5255), (4204, 4855)]