51686820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{287149}}^1$

素因数の和:287164

約数の個数: 36

約数和(自身を含む): 156783900

約数和(自身を除く): 105097080

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 287149, 574298, 861447, 1148596, 1435745, 1722894, 2584341, 2871490, 3445788, 4307235, 5168682, 5742980, 8614470, 10337364, 12921705, 17228940, 25843410, 51686820]

約数ペア:

[(1, 51686820), (2, 25843410), (3, 17228940), (4, 12921705), (5, 10337364), (6, 8614470), (9, 5742980), (10, 5168682), (12, 4307235), (15, 3445788), (18, 2871490), (20, 2584341), (30, 1722894), (36, 1435745), (45, 1148596), (60, 861447), (90, 574298), (180, 287149)]