220172920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{500393}}^1$

素因数の和:500415

約数の個数: 32

約数和(自身を含む): 540425520

約数和(自身を除く): 320252600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 500393, 1000786, 2001572, 2501965, 4003144, 5003930, 5504323, 10007860, 11008646, 20015720, 22017292, 27521615, 44034584, 55043230, 110086460, 220172920]

約数ペア:

[(1, 220172920), (2, 110086460), (4, 55043230), (5, 44034584), (8, 27521615), (10, 22017292), (11, 20015720), (20, 11008646), (22, 10007860), (40, 5504323), (44, 5003930), (55, 4003144), (88, 2501965), (110, 2001572), (220, 1000786), (440, 500393)]