19911180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{8969}}^1$

素因数の和:9018

約数の個数: 48

約数和(自身を含む): 57264480

約数和(自身を除く): 37353300

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 37, 60, 74, 111, 148, 185, 222, 370, 444, 555, 740, 1110, 2220, 8969, 17938, 26907, 35876, 44845, 53814, 89690, 107628, 134535, 179380, 269070, 331853, 538140, 663706, 995559, 1327412, 1659265, 1991118, 3318530, 3982236, 4977795, 6637060, 9955590, 19911180]

約数ペア:

[(1, 19911180), (2, 9955590), (3, 6637060), (4, 4977795), (5, 3982236), (6, 3318530), (10, 1991118), (12, 1659265), (15, 1327412), (20, 995559), (30, 663706), (37, 538140), (60, 331853), (74, 269070), (111, 179380), (148, 134535), (185, 107628), (222, 89690), (370, 53814), (444, 44845), (555, 35876), (740, 26907), (1110, 17938), (2220, 8969)]