20649690

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{479}}^2$

素因数の和:971

約数の個数: 36

約数和(自身を含む): 53801514

約数和(自身を除く): 33151824

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 479, 958, 1437, 2395, 2874, 4311, 4790, 7185, 8622, 14370, 21555, 43110, 229441, 458882, 688323, 1147205, 1376646, 2064969, 2294410, 3441615, 4129938, 6883230, 10324845, 20649690]

約数ペア:

[(1, 20649690), (2, 10324845), (3, 6883230), (5, 4129938), (6, 3441615), (9, 2294410), (10, 2064969), (15, 1376646), (18, 1147205), (30, 688323), (45, 458882), (90, 229441), (479, 43110), (958, 21555), (1437, 14370), (2395, 8622), (2874, 7185), (4311, 4790)]