8909180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{9091}}^1$

素因数の和:9114

約数の個数: 36

約数和(自身を含む): 21766248

約数和(自身を除く): 12857068

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 9091, 18182, 36364, 45455, 63637, 90910, 127274, 181820, 254548, 318185, 445459, 636370, 890918, 1272740, 1781836, 2227295, 4454590, 8909180]

約数ペア:

[(1, 8909180), (2, 4454590), (4, 2227295), (5, 1781836), (7, 1272740), (10, 890918), (14, 636370), (20, 445459), (28, 318185), (35, 254548), (49, 181820), (70, 127274), (98, 90910), (140, 63637), (196, 45455), (245, 36364), (490, 18182), (980, 9091)]