81927508

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{401}}^1\times {\mathrm{3929}}^1$

素因数の和:4347

約数の個数: 24

約数和(自身を含む): 154826280

約数和(自身を除く): 72898772

約数列:

[1, 2, 4, 13, 26, 52, 401, 802, 1604, 3929, 5213, 7858, 10426, 15716, 20852, 51077, 102154, 204308, 1575529, 3151058, 6302116, 20481877, 40963754, 81927508]

約数ペア:

[(1, 81927508), (2, 40963754), (4, 20481877), (13, 6302116), (26, 3151058), (52, 1575529), (401, 204308), (802, 102154), (1604, 51077), (3929, 20852), (5213, 15716), (7858, 10426)]