1807220

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{829}}^1$

素因数の和:947

約数の個数: 24

約数和(自身を含む): 3834600

約数和(自身を除く): 2027380

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 829, 1090, 1658, 2180, 3316, 4145, 8290, 16580, 90361, 180722, 361444, 451805, 903610, 1807220]

約数ペア:

[(1, 1807220), (2, 903610), (4, 451805), (5, 361444), (10, 180722), (20, 90361), (109, 16580), (218, 8290), (436, 4145), (545, 3316), (829, 2180), (1090, 1658)]