128944220

素因数分解:

$2^2\times 5^1\times {\mathrm{857}}^1\times {\mathrm{7523}}^1$

素因数の和:8389

約数の個数: 24

約数和(自身を含む): 271134864

約数和(自身を除く): 142190644

約数列:

[1, 2, 4, 5, 10, 20, 857, 1714, 3428, 4285, 7523, 8570, 15046, 17140, 30092, 37615, 75230, 150460, 6447211, 12894422, 25788844, 32236055, 64472110, 128944220]

約数ペア:

[(1, 128944220), (2, 64472110), (4, 32236055), (5, 25788844), (10, 12894422), (20, 6447211), (857, 150460), (1714, 75230), (3428, 37615), (4285, 30092), (7523, 17140), (8570, 15046)]