55405780

素因数分解:

$2^2\times 5^1\times {\mathrm{1621}}^1\times {\mathrm{1709}}^1$

素因数の和:3339

約数の個数: 24

約数和(自身を含む): 116492040

約数和(自身を除く): 61086260

約数列:

[1, 2, 4, 5, 10, 20, 1621, 1709, 3242, 3418, 6484, 6836, 8105, 8545, 16210, 17090, 32420, 34180, 2770289, 5540578, 11081156, 13851445, 27702890, 55405780]

約数ペア:

[(1, 55405780), (2, 27702890), (4, 13851445), (5, 11081156), (10, 5540578), (20, 2770289), (1621, 34180), (1709, 32420), (3242, 17090), (3418, 16210), (6484, 8545), (6836, 8105)]