20178776

素因数分解:

$2^3\times {\mathrm{127}}^1\times {\mathrm{19861}}^1$

素因数の和:19994

約数の個数: 16

約数和(自身を含む): 38135040

約数和(自身を除く): 17956264

約数列:

[1, 2, 4, 8, 127, 254, 508, 1016, 19861, 39722, 79444, 158888, 2522347, 5044694, 10089388, 20178776]

約数ペア:

[(1, 20178776), (2, 10089388), (4, 5044694), (8, 2522347), (127, 158888), (254, 79444), (508, 39722), (1016, 19861)]