1397680

素因数分解:

$2^4\times 5^1\times {\mathrm{17471}}^1$

素因数の和:17484

約数の個数: 20

約数和(自身を含む): 3249792

約数和(自身を除く): 1852112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 17471, 34942, 69884, 87355, 139768, 174710, 279536, 349420, 698840, 1397680]

約数ペア:

[(1, 1397680), (2, 698840), (4, 349420), (5, 279536), (8, 174710), (10, 139768), (16, 87355), (20, 69884), (40, 34942), (80, 17471)]