68080280

素因数分解:

$2^3\times 5^1\times {\mathrm{1021}}^1\times {\mathrm{1667}}^1$

素因数の和:2699

約数の個数: 32

約数和(自身を含む): 153422640

約数和(自身を除く): 85342360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1021, 1667, 2042, 3334, 4084, 5105, 6668, 8168, 8335, 10210, 13336, 16670, 20420, 33340, 40840, 66680, 1702007, 3404014, 6808028, 8510035, 13616056, 17020070, 34040140, 68080280]

約数ペア:

[(1, 68080280), (2, 34040140), (4, 17020070), (5, 13616056), (8, 8510035), (10, 6808028), (20, 3404014), (40, 1702007), (1021, 66680), (1667, 40840), (2042, 33340), (3334, 20420), (4084, 16670), (5105, 13336), (6668, 10210), (8168, 8335)]