520079720

素因数分解:

$2^3\times 5^1\times {\mathrm{13001993}}^1$

素因数の和:13002004

約数の個数: 16

約数和(自身を含む): 1170179460

約数和(自身を除く): 650099740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 13001993, 26003986, 52007972, 65009965, 104015944, 130019930, 260039860, 520079720]

約数ペア:

[(1, 520079720), (2, 260039860), (4, 130019930), (5, 104015944), (8, 65009965), (10, 52007972), (20, 26003986), (40, 13001993)]