127712920

素因数分解:

$2^3\times 5^1\times {\mathrm{179}}^1\times {\mathrm{17837}}^1$

素因数の和:18027

約数の個数: 32

約数和(自身を含む): 288975600

約数和(自身を除く): 161262680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 179, 358, 716, 895, 1432, 1790, 3580, 7160, 17837, 35674, 71348, 89185, 142696, 178370, 356740, 713480, 3192823, 6385646, 12771292, 15964115, 25542584, 31928230, 63856460, 127712920]

約数ペア:

[(1, 127712920), (2, 63856460), (4, 31928230), (5, 25542584), (8, 15964115), (10, 12771292), (20, 6385646), (40, 3192823), (179, 713480), (358, 356740), (716, 178370), (895, 142696), (1432, 89185), (1790, 71348), (3580, 35674), (7160, 17837)]