79992880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{90901}}^1$

素因数の和:90925

約数の個数: 40

約数和(自身を含む): 202893264

約数和(自身を除く): 122900384

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 90901, 181802, 363604, 454505, 727208, 909010, 999911, 1454416, 1818020, 1999822, 3636040, 3999644, 4999555, 7272080, 7999288, 9999110, 15998576, 19998220, 39996440, 79992880]

約数ペア:

[(1, 79992880), (2, 39996440), (4, 19998220), (5, 15998576), (8, 9999110), (10, 7999288), (11, 7272080), (16, 4999555), (20, 3999644), (22, 3636040), (40, 1999822), (44, 1818020), (55, 1454416), (80, 999911), (88, 909010), (110, 727208), (176, 454505), (220, 363604), (440, 181802), (880, 90901)]