42978740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{306991}}^1$

素因数の和:307007

約数の個数: 24

約数和(自身を含む): 103149312

約数和(自身を除く): 60170572

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 306991, 613982, 1227964, 1534955, 2148937, 3069910, 4297874, 6139820, 8595748, 10744685, 21489370, 42978740]

約数ペア:

[(1, 42978740), (2, 21489370), (4, 10744685), (5, 8595748), (7, 6139820), (10, 4297874), (14, 3069910), (20, 2148937), (28, 1534955), (35, 1227964), (70, 613982), (140, 306991)]