108920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{389}}^1$

素因数の和:407

約数の個数: 32

約数和(自身を含む): 280800

約数和(自身を除く): 171880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 389, 778, 1556, 1945, 2723, 3112, 3890, 5446, 7780, 10892, 13615, 15560, 21784, 27230, 54460, 108920]

約数ペア:

[(1, 108920), (2, 54460), (4, 27230), (5, 21784), (7, 15560), (8, 13615), (10, 10892), (14, 7780), (20, 5446), (28, 3890), (35, 3112), (40, 2723), (56, 1945), (70, 1556), (140, 778), (280, 389)]