13965880

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{3923}}^1$

素因数の和:4023

約数の個数: 32

約数和(自身を含む): 31784400

約数和(自身を除く): 17818520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 3923, 7846, 15692, 19615, 31384, 39230, 78460, 156920, 349147, 698294, 1396588, 1745735, 2793176, 3491470, 6982940, 13965880]

約数ペア:

[(1, 13965880), (2, 6982940), (4, 3491470), (5, 2793176), (8, 1745735), (10, 1396588), (20, 698294), (40, 349147), (89, 156920), (178, 78460), (356, 39230), (445, 31384), (712, 19615), (890, 15692), (1780, 7846), (3560, 3923)]