13887020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{353}}^1$

素因数の和:650

約数の個数: 48

約数和(自身を含む): 33542208

約数和(自身を除く): 19655188

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 281, 353, 562, 706, 1124, 1405, 1412, 1765, 1967, 2471, 2810, 3530, 3934, 4942, 5620, 7060, 7868, 9835, 9884, 12355, 19670, 24710, 39340, 49420, 99193, 198386, 396772, 495965, 694351, 991930, 1388702, 1983860, 2777404, 3471755, 6943510, 13887020]

約数ペア:

[(1, 13887020), (2, 6943510), (4, 3471755), (5, 2777404), (7, 1983860), (10, 1388702), (14, 991930), (20, 694351), (28, 495965), (35, 396772), (70, 198386), (140, 99193), (281, 49420), (353, 39340), (562, 24710), (706, 19670), (1124, 12355), (1405, 9884), (1412, 9835), (1765, 7868), (1967, 7060), (2471, 5620), (2810, 4942), (3530, 3934)]