20178880004

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{265511579}}^1$

素因数の和:265511602

約数の個数: 12

約数和(自身を含む): 37171621200

約数和(自身を除く): 16992741196

約数列:

[1, 2, 4, 19, 38, 76, 265511579, 531023158, 1062046316, 5044720001, 10089440002, 20178880004]

約数ペア:

[(1, 20178880004), (2, 10089440002), (4, 5044720001), (19, 1062046316), (38, 531023158), (76, 265511579)]