20484310

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{719}}^1$

素因数の和:781

約数の個数: 64

約数和(自身を含む): 47278080

約数和(自身を除く): 26793770

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 37, 55, 70, 74, 77, 110, 154, 185, 259, 370, 385, 407, 518, 719, 770, 814, 1295, 1438, 2035, 2590, 2849, 3595, 4070, 5033, 5698, 7190, 7909, 10066, 14245, 15818, 25165, 26603, 28490, 39545, 50330, 53206, 55363, 79090, 110726, 133015, 186221, 266030, 276815, 292633, 372442, 553630, 585266, 931105, 1463165, 1862210, 2048431, 2926330, 4096862, 10242155, 20484310]

約数ペア:

[(1, 20484310), (2, 10242155), (5, 4096862), (7, 2926330), (10, 2048431), (11, 1862210), (14, 1463165), (22, 931105), (35, 585266), (37, 553630), (55, 372442), (70, 292633), (74, 276815), (77, 266030), (110, 186221), (154, 133015), (185, 110726), (259, 79090), (370, 55363), (385, 53206), (407, 50330), (518, 39545), (719, 28490), (770, 26603), (814, 25165), (1295, 15818), (1438, 14245), (2035, 10066), (2590, 7909), (2849, 7190), (3595, 5698), (4070, 5033)]