80621180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{212161}}^1$

素因数の和:212189

約数の個数: 24

約数和(自身を含む): 178216080

約数和(自身を除く): 97594900

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 212161, 424322, 848644, 1060805, 2121610, 4031059, 4243220, 8062118, 16124236, 20155295, 40310590, 80621180]

約数ペア:

[(1, 80621180), (2, 40310590), (4, 20155295), (5, 16124236), (10, 8062118), (19, 4243220), (20, 4031059), (38, 2121610), (76, 1060805), (95, 848644), (190, 424322), (380, 212161)]