31153580

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{7907}}^1$

素因数の和:8113

約数の個数: 24

約数和(自身を含む): 65762928

約数和(自身を除く): 34609348

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 7907, 15814, 31628, 39535, 79070, 158140, 1557679, 3115358, 6230716, 7788395, 15576790, 31153580]

約数ペア:

[(1, 31153580), (2, 15576790), (4, 7788395), (5, 6230716), (10, 3115358), (20, 1557679), (197, 158140), (394, 79070), (788, 39535), (985, 31628), (1970, 15814), (3940, 7907)]