20202040

素因数分解:

$2^3\times 5^1\times {\mathrm{505051}}^1$

素因数の和:505062

約数の個数: 16

約数和(自身を含む): 45454680

約数和(自身を除く): 25252640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 505051, 1010102, 2020204, 2525255, 4040408, 5050510, 10101020, 20202040]

約数ペア:

[(1, 20202040), (2, 10101020), (4, 5050510), (5, 4040408), (8, 2525255), (10, 2020204), (20, 1010102), (40, 505051)]