80408560

素因数分解:

$2^4\times 5^1\times {\mathrm{1005107}}^1$

素因数の和:1005120

約数の個数: 20

約数和(自身を含む): 186950088

約数和(自身を除く): 106541528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1005107, 2010214, 4020428, 5025535, 8040856, 10051070, 16081712, 20102140, 40204280, 80408560]

約数ペア:

[(1, 80408560), (2, 40204280), (4, 20102140), (5, 16081712), (8, 10051070), (10, 8040856), (16, 5025535), (20, 4020428), (40, 2010214), (80, 1005107)]