68990290

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{168269}}^1$

素因数の和:168317

約数の個数: 16

約数和(自身を含む): 127212120

約数和(自身を除く): 58221830

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 168269, 336538, 841345, 1682690, 6899029, 13798058, 34495145, 68990290]

約数ペア:

[(1, 68990290), (2, 34495145), (5, 13798058), (10, 6899029), (41, 1682690), (82, 841345), (205, 336538), (410, 168269)]