56489780

素因数分解:

$2^2\times 5^1\times {\mathrm{421}}^1\times {\mathrm{6709}}^1$

素因数の和:7139

約数の個数: 24

約数和(自身を含む): 118928040

約数和(自身を除く): 62438260

約数列:

[1, 2, 4, 5, 10, 20, 421, 842, 1684, 2105, 4210, 6709, 8420, 13418, 26836, 33545, 67090, 134180, 2824489, 5648978, 11297956, 14122445, 28244890, 56489780]

約数ペア:

[(1, 56489780), (2, 28244890), (4, 14122445), (5, 11297956), (10, 5648978), (20, 2824489), (421, 134180), (842, 67090), (1684, 33545), (2105, 26836), (4210, 13418), (6709, 8420)]