7987220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{21019}}^1$

素因数の和:21047

約数の個数: 24

約数和(自身を含む): 17656800

約数和(自身を除く): 9669580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 21019, 42038, 84076, 105095, 210190, 399361, 420380, 798722, 1597444, 1996805, 3993610, 7987220]

約数ペア:

[(1, 7987220), (2, 3993610), (4, 1996805), (5, 1597444), (10, 798722), (19, 420380), (20, 399361), (38, 210190), (76, 105095), (95, 84076), (190, 42038), (380, 21019)]