520051640

素因数分解:

$2^3\times 5^1\times {\mathrm{13001291}}^1$

素因数の和:13001302

約数の個数: 16

約数和(自身を含む): 1170116280

約数和(自身を除く): 650064640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 13001291, 26002582, 52005164, 65006455, 104010328, 130012910, 260025820, 520051640]

約数ペア:

[(1, 520051640), (2, 260025820), (4, 130012910), (5, 104010328), (8, 65006455), (10, 52005164), (20, 26002582), (40, 13001291)]