20642756485

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{4020011}}^1$

素因数の和:4020108

約数の個数: 16

約数和(自身を含む): 27014480640

約数和(自身を除く): 6371724155

約数列:

[1, 5, 13, 65, 79, 395, 1027, 5135, 4020011, 20100055, 52260143, 261300715, 317580869, 1587904345, 4128551297, 20642756485]

約数ペア:

[(1, 20642756485), (5, 4128551297), (13, 1587904345), (65, 317580869), (79, 261300715), (395, 52260143), (1027, 20100055), (5135, 4020011)]