13908920

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{3907}}^1$

素因数の和:4007

約数の個数: 32

約数和(自身を含む): 31654800

約数和(自身を除く): 17745880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 3907, 7814, 15628, 19535, 31256, 39070, 78140, 156280, 347723, 695446, 1390892, 1738615, 2781784, 3477230, 6954460, 13908920]

約数ペア:

[(1, 13908920), (2, 6954460), (4, 3477230), (5, 2781784), (8, 1738615), (10, 1390892), (20, 695446), (40, 347723), (89, 156280), (178, 78140), (356, 39070), (445, 31256), (712, 19535), (890, 15628), (1780, 7814), (3560, 3907)]