20080785

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1\times {\mathrm{191}}^1$

素因数の和:405

約数の個数: 32

約数和(自身を含む): 33251328

約数和(自身を除く): 13170543

約数列:

[1, 3, 5, 15, 43, 129, 163, 191, 215, 489, 573, 645, 815, 955, 2445, 2865, 7009, 8213, 21027, 24639, 31133, 35045, 41065, 93399, 105135, 123195, 155665, 466995, 1338719, 4016157, 6693595, 20080785]

約数ペア:

[(1, 20080785), (3, 6693595), (5, 4016157), (15, 1338719), (43, 466995), (129, 155665), (163, 123195), (191, 105135), (215, 93399), (489, 41065), (573, 35045), (645, 31133), (815, 24639), (955, 21027), (2445, 8213), (2865, 7009)]