13890040

素因数分解:

$2^3\times 5^1\times {\mathrm{347251}}^1$

素因数の和:347262

約数の個数: 16

約数和(自身を含む): 31252680

約数和(自身を除く): 17362640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 347251, 694502, 1389004, 1736255, 2778008, 3472510, 6945020, 13890040]

約数ペア:

[(1, 13890040), (2, 6945020), (4, 3472510), (5, 2778008), (8, 1736255), (10, 1389004), (20, 694502), (40, 347251)]