28155580

素因数分解:

$2^2\times 5^1\times {\mathrm{347}}^1\times {\mathrm{4057}}^1$

素因数の和:4413

約数の個数: 24

約数和(自身を含む): 59311728

約数和(自身を除く): 31156148

約数列:

[1, 2, 4, 5, 10, 20, 347, 694, 1388, 1735, 3470, 4057, 6940, 8114, 16228, 20285, 40570, 81140, 1407779, 2815558, 5631116, 7038895, 14077790, 28155580]

約数ペア:

[(1, 28155580), (2, 14077790), (4, 7038895), (5, 5631116), (10, 2815558), (20, 1407779), (347, 81140), (694, 40570), (1388, 20285), (1735, 16228), (3470, 8114), (4057, 6940)]