27912920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{99689}}^1$

素因数の和:99707

約数の個数: 32

約数和(自身を含む): 71776800

約数和(自身を除く): 43863880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 99689, 199378, 398756, 498445, 697823, 797512, 996890, 1395646, 1993780, 2791292, 3489115, 3987560, 5582584, 6978230, 13956460, 27912920]

約数ペア:

[(1, 27912920), (2, 13956460), (4, 6978230), (5, 5582584), (7, 3987560), (8, 3489115), (10, 2791292), (14, 1993780), (20, 1395646), (28, 996890), (35, 797512), (40, 697823), (56, 498445), (70, 398756), (140, 199378), (280, 99689)]