123156740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{879691}}^1$

素因数の和:879707

約数の個数: 24

約数和(自身を含む): 295576512

約数和(自身を除く): 172419772

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 879691, 1759382, 3518764, 4398455, 6157837, 8796910, 12315674, 17593820, 24631348, 30789185, 61578370, 123156740]

約数ペア:

[(1, 123156740), (2, 61578370), (4, 30789185), (5, 24631348), (7, 17593820), (10, 12315674), (14, 8796910), (20, 6157837), (28, 4398455), (35, 3518764), (70, 1759382), (140, 879691)]