20085184420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{3581}}^1\times {\mathrm{40063}}^1$

素因数の和:43660

約数の個数: 48

約数和(自身を含む): 48219107328

約数和(自身を除く): 28133922908

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 3581, 7162, 14324, 17905, 25067, 35810, 40063, 50134, 71620, 80126, 100268, 125335, 160252, 200315, 250670, 280441, 400630, 501340, 560882, 801260, 1121764, 1402205, 2804410, 5608820, 143465603, 286931206, 573862412, 717328015, 1004259221, 1434656030, 2008518442, 2869312060, 4017036884, 5021296105, 10042592210, 20085184420]

約数ペア:

[(1, 20085184420), (2, 10042592210), (4, 5021296105), (5, 4017036884), (7, 2869312060), (10, 2008518442), (14, 1434656030), (20, 1004259221), (28, 717328015), (35, 573862412), (70, 286931206), (140, 143465603), (3581, 5608820), (7162, 2804410), (14324, 1402205), (17905, 1121764), (25067, 801260), (35810, 560882), (40063, 501340), (50134, 400630), (71620, 280441), (80126, 250670), (100268, 200315), (125335, 160252)]