128410820

素因数分解:

$2^2\times 5^1\times {\mathrm{347}}^1\times {\mathrm{18503}}^1$

素因数の和:18859

約数の個数: 24

約数和(自身を含む): 270454464

約数和(自身を除く): 142043644

約数列:

[1, 2, 4, 5, 10, 20, 347, 694, 1388, 1735, 3470, 6940, 18503, 37006, 74012, 92515, 185030, 370060, 6420541, 12841082, 25682164, 32102705, 64205410, 128410820]

約数ペア:

[(1, 128410820), (2, 64205410), (4, 32102705), (5, 25682164), (10, 12841082), (20, 6420541), (347, 370060), (694, 185030), (1388, 92515), (1735, 74012), (3470, 37006), (6940, 18503)]