256280975

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{151}}^1\times {\mathrm{2341}}^1$

素因数の和:2531

約数の個数: 24

約数和(自身を含む): 331065120

約数和(自身を除く): 74784145

約数列:

[1, 5, 25, 29, 145, 151, 725, 755, 2341, 3775, 4379, 11705, 21895, 58525, 67889, 109475, 339445, 353491, 1697225, 1767455, 8837275, 10251239, 51256195, 256280975]

約数ペア:

[(1, 256280975), (5, 51256195), (25, 10251239), (29, 8837275), (145, 1767455), (151, 1697225), (725, 353491), (755, 339445), (2341, 109475), (3775, 67889), (4379, 58525), (11705, 21895)]