10820215

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{307}}^1$

素因数の和:391

約数の個数: 32

約数和(自身を含む): 15966720

約数和(自身を除く): 5146505

約数列:

[1, 5, 7, 19, 35, 53, 95, 133, 265, 307, 371, 665, 1007, 1535, 1855, 2149, 5035, 5833, 7049, 10745, 16271, 29165, 35245, 40831, 81355, 113897, 204155, 309149, 569485, 1545745, 2164043, 10820215]

約数ペア:

[(1, 10820215), (5, 2164043), (7, 1545745), (19, 569485), (35, 309149), (53, 204155), (95, 113897), (133, 81355), (265, 40831), (307, 35245), (371, 29165), (665, 16271), (1007, 10745), (1535, 7049), (1855, 5833), (2149, 5035)]