13538680

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{3803}}^1$

素因数の和:3903

約数の個数: 32

約数和(自身を含む): 30812400

約数和(自身を除く): 17273720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 3803, 7606, 15212, 19015, 30424, 38030, 76060, 152120, 338467, 676934, 1353868, 1692335, 2707736, 3384670, 6769340, 13538680]

約数ペア:

[(1, 13538680), (2, 6769340), (4, 3384670), (5, 2707736), (8, 1692335), (10, 1353868), (20, 676934), (40, 338467), (89, 152120), (178, 76060), (356, 38030), (445, 30424), (712, 19015), (890, 15212), (1780, 7606), (3560, 3803)]