1279356040

素因数分解:

$2^3\times 5^1\times {\mathrm{31983901}}^1$

素因数の和:31983912

約数の個数: 16

約数和(自身を含む): 2878551180

約数和(自身を除く): 1599195140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 31983901, 63967802, 127935604, 159919505, 255871208, 319839010, 639678020, 1279356040]

約数ペア:

[(1, 1279356040), (2, 639678020), (4, 319839010), (5, 255871208), (8, 159919505), (10, 127935604), (20, 63967802), (40, 31983901)]