20505424

素因数分解:

$2^4\times {\mathrm{101}}^1\times {\mathrm{12689}}^1$

素因数の和:12798

約数の個数: 20

約数和(自身を含む): 40125780

約数和(自身を除く): 19620356

約数列:

[1, 2, 4, 8, 16, 101, 202, 404, 808, 1616, 12689, 25378, 50756, 101512, 203024, 1281589, 2563178, 5126356, 10252712, 20505424]

約数ペア:

[(1, 20505424), (2, 10252712), (4, 5126356), (8, 2563178), (16, 1281589), (101, 203024), (202, 101512), (404, 50756), (808, 25378), (1616, 12689)]