28880740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{206291}}^1$

素因数の和:206307

約数の個数: 24

約数和(自身を含む): 69314112

約数和(自身を除く): 40433372

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 206291, 412582, 825164, 1031455, 1444037, 2062910, 2888074, 4125820, 5776148, 7220185, 14440370, 28880740]

約数ペア:

[(1, 28880740), (2, 14440370), (4, 7220185), (5, 5776148), (7, 4125820), (10, 2888074), (14, 2062910), (20, 1444037), (28, 1031455), (35, 825164), (70, 412582), (140, 206291)]