1788920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{6389}}^1$

素因数の和:6407

約数の個数: 32

約数和(自身を含む): 4600800

約数和(自身を除く): 2811880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 6389, 12778, 25556, 31945, 44723, 51112, 63890, 89446, 127780, 178892, 223615, 255560, 357784, 447230, 894460, 1788920]

約数ペア:

[(1, 1788920), (2, 894460), (4, 447230), (5, 357784), (7, 255560), (8, 223615), (10, 178892), (14, 127780), (20, 89446), (28, 63890), (35, 51112), (40, 44723), (56, 31945), (70, 25556), (140, 12778), (280, 6389)]