81393060

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{193793}}^1$

素因数の和:193812

約数の個数: 48

約数和(自身を含む): 260459136

約数和(自身を除く): 179066076

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 193793, 387586, 581379, 775172, 968965, 1162758, 1356551, 1937930, 2325516, 2713102, 2906895, 3875860, 4069653, 5426204, 5813790, 6782755, 8139306, 11627580, 13565510, 16278612, 20348265, 27131020, 40696530, 81393060]

約数ペア:

[(1, 81393060), (2, 40696530), (3, 27131020), (4, 20348265), (5, 16278612), (6, 13565510), (7, 11627580), (10, 8139306), (12, 6782755), (14, 5813790), (15, 5426204), (20, 4069653), (21, 3875860), (28, 2906895), (30, 2713102), (35, 2325516), (42, 1937930), (60, 1356551), (70, 1162758), (84, 968965), (105, 775172), (140, 581379), (210, 387586), (420, 193793)]