9087980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{409}}^1$

素因数の和:530

約数の個数: 48

約数和(自身を含む): 21077280

約数和(自身を除く): 11989300

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 101, 110, 202, 220, 404, 409, 505, 818, 1010, 1111, 1636, 2020, 2045, 2222, 4090, 4444, 4499, 5555, 8180, 8998, 11110, 17996, 22220, 22495, 41309, 44990, 82618, 89980, 165236, 206545, 413090, 454399, 826180, 908798, 1817596, 2271995, 4543990, 9087980]

約数ペア:

[(1, 9087980), (2, 4543990), (4, 2271995), (5, 1817596), (10, 908798), (11, 826180), (20, 454399), (22, 413090), (44, 206545), (55, 165236), (101, 89980), (110, 82618), (202, 44990), (220, 41309), (404, 22495), (409, 22220), (505, 17996), (818, 11110), (1010, 8998), (1111, 8180), (1636, 5555), (2020, 4499), (2045, 4444), (2222, 4090)]