81900564490

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{221352877}}^1$

素因数の和:221352921

約数の個数: 16

約数和(自身を含む): 151405368552

約数和(自身を除く): 69504804062

約数列:

[1, 2, 5, 10, 37, 74, 185, 370, 221352877, 442705754, 1106764385, 2213528770, 8190056449, 16380112898, 40950282245, 81900564490]

約数ペア:

[(1, 81900564490), (2, 40950282245), (5, 16380112898), (10, 8190056449), (37, 2213528770), (74, 1106764385), (185, 442705754), (370, 221352877)]