18811540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{2311}}^1$

素因数の和:2368

約数の個数: 48

約数和(自身を含む): 44279424

約数和(自身を除く): 25467884

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 74, 110, 148, 185, 220, 370, 407, 740, 814, 1628, 2035, 2311, 4070, 4622, 8140, 9244, 11555, 23110, 25421, 46220, 50842, 85507, 101684, 127105, 171014, 254210, 342028, 427535, 508420, 855070, 940577, 1710140, 1881154, 3762308, 4702885, 9405770, 18811540]

約数ペア:

[(1, 18811540), (2, 9405770), (4, 4702885), (5, 3762308), (10, 1881154), (11, 1710140), (20, 940577), (22, 855070), (37, 508420), (44, 427535), (55, 342028), (74, 254210), (110, 171014), (148, 127105), (185, 101684), (220, 85507), (370, 50842), (407, 46220), (740, 25421), (814, 23110), (1628, 11555), (2035, 9244), (2311, 8140), (4070, 4622)]