253137680

素因数分解:

$2^4\times 5^1\times {\mathrm{3164221}}^1$

素因数の和:3164234

約数の個数: 20

約数和(自身を含む): 588545292

約数和(自身を除く): 335407612

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3164221, 6328442, 12656884, 15821105, 25313768, 31642210, 50627536, 63284420, 126568840, 253137680]

約数ペア:

[(1, 253137680), (2, 126568840), (4, 63284420), (5, 50627536), (8, 31642210), (10, 25313768), (16, 15821105), (20, 12656884), (40, 6328442), (80, 3164221)]