278360740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1988291}}^1$

素因数の和:1988307

約数の個数: 24

約数和(自身を含む): 668066112

約数和(自身を除く): 389705372

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1988291, 3976582, 7953164, 9941455, 13918037, 19882910, 27836074, 39765820, 55672148, 69590185, 139180370, 278360740]

約数ペア:

[(1, 278360740), (2, 139180370), (4, 69590185), (5, 55672148), (7, 39765820), (10, 27836074), (14, 19882910), (20, 13918037), (28, 9941455), (35, 7953164), (70, 3976582), (140, 1988291)]