20804576

素因数分解:

$2^5\times {\mathrm{13}}^2\times {\mathrm{3847}}^1$

素因数の和:3883

約数の個数: 36

約数和(自身を含む): 44363592

約数和(自身を除く): 23559016

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 169, 208, 338, 416, 676, 1352, 2704, 3847, 5408, 7694, 15388, 30776, 50011, 61552, 100022, 123104, 200044, 400088, 650143, 800176, 1300286, 1600352, 2600572, 5201144, 10402288, 20804576]

約数ペア:

[(1, 20804576), (2, 10402288), (4, 5201144), (8, 2600572), (13, 1600352), (16, 1300286), (26, 800176), (32, 650143), (52, 400088), (104, 200044), (169, 123104), (208, 100022), (338, 61552), (416, 50011), (676, 30776), (1352, 15388), (2704, 7694), (3847, 5408)]