25765996840

素因数分解:

$2^3\times 5^1\times {\mathrm{1021}}^1\times {\mathrm{630901}}^1$

素因数の和:631933

約数の個数: 32

約数和(自身を含む): 58030365960

約数和(自身を除く): 32264369120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1021, 2042, 4084, 5105, 8168, 10210, 20420, 40840, 630901, 1261802, 2523604, 3154505, 5047208, 6309010, 12618020, 25236040, 644149921, 1288299842, 2576599684, 3220749605, 5153199368, 6441499210, 12882998420, 25765996840]

約数ペア:

[(1, 25765996840), (2, 12882998420), (4, 6441499210), (5, 5153199368), (8, 3220749605), (10, 2576599684), (20, 1288299842), (40, 644149921), (1021, 25236040), (2042, 12618020), (4084, 6309010), (5105, 5047208), (8168, 3154505), (10210, 2523604), (20420, 1261802), (40840, 630901)]