128172280

素因数分解:

$2^3\times 5^1\times {\mathrm{3204307}}^1$

素因数の和:3204318

約数の個数: 16

約数和(自身を含む): 288387720

約数和(自身を除く): 160215440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3204307, 6408614, 12817228, 16021535, 25634456, 32043070, 64086140, 128172280]

約数ペア:

[(1, 128172280), (2, 64086140), (4, 32043070), (5, 25634456), (8, 16021535), (10, 12817228), (20, 6408614), (40, 3204307)]