20256548

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{4931}}^1$

素因数の和:5027

約数の個数: 24

約数和(自身を含む): 38666880

約数和(自身を除く): 18410332

約数列:

[1, 2, 4, 13, 26, 52, 79, 158, 316, 1027, 2054, 4108, 4931, 9862, 19724, 64103, 128206, 256412, 389549, 779098, 1558196, 5064137, 10128274, 20256548]

約数ペア:

[(1, 20256548), (2, 10128274), (4, 5064137), (13, 1558196), (26, 779098), (52, 389549), (79, 256412), (158, 128206), (316, 64103), (1027, 19724), (2054, 9862), (4108, 4931)]