820370210

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{4567}}^1$

素因数の和:4679

約数の個数: 64

約数和(自身を含む): 1704996864

約数和(自身を除く): 884626654

約数列:

[1, 2, 5, 10, 11, 22, 23, 46, 55, 71, 110, 115, 142, 230, 253, 355, 506, 710, 781, 1265, 1562, 1633, 2530, 3266, 3905, 4567, 7810, 8165, 9134, 16330, 17963, 22835, 35926, 45670, 50237, 89815, 100474, 105041, 179630, 210082, 251185, 324257, 502370, 525205, 648514, 1050410, 1155451, 1621285, 2310902, 3242570, 3566827, 5777255, 7133654, 7457911, 11554510, 14915822, 17834135, 35668270, 37289555, 74579110, 82037021, 164074042, 410185105, 820370210]

約数ペア:

[(1, 820370210), (2, 410185105), (5, 164074042), (10, 82037021), (11, 74579110), (22, 37289555), (23, 35668270), (46, 17834135), (55, 14915822), (71, 11554510), (110, 7457911), (115, 7133654), (142, 5777255), (230, 3566827), (253, 3242570), (355, 2310902), (506, 1621285), (710, 1155451), (781, 1050410), (1265, 648514), (1562, 525205), (1633, 502370), (2530, 324257), (3266, 251185), (3905, 210082), (4567, 179630), (7810, 105041), (8165, 100474), (9134, 89815), (16330, 50237), (17963, 45670), (22835, 35926)]