18226180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{617}}^1$

素因数の和:844

約数の個数: 48

約数和(自身を含む): 44021376

約数和(自身を除く): 25795196

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 211, 422, 617, 844, 1055, 1234, 1477, 2110, 2468, 2954, 3085, 4220, 4319, 5908, 6170, 7385, 8638, 12340, 14770, 17276, 21595, 29540, 43190, 86380, 130187, 260374, 520748, 650935, 911309, 1301870, 1822618, 2603740, 3645236, 4556545, 9113090, 18226180]

約数ペア:

[(1, 18226180), (2, 9113090), (4, 4556545), (5, 3645236), (7, 2603740), (10, 1822618), (14, 1301870), (20, 911309), (28, 650935), (35, 520748), (70, 260374), (140, 130187), (211, 86380), (422, 43190), (617, 29540), (844, 21595), (1055, 17276), (1234, 14770), (1477, 12340), (2110, 8638), (2468, 7385), (2954, 6170), (3085, 5908), (4220, 4319)]