77720225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{409}}^1\times {\mathrm{691}}^1$

素因数の和:1121

約数の個数: 24

約数和(自身を含む): 105543840

約数和(自身を除く): 27823615

約数列:

[1, 5, 11, 25, 55, 275, 409, 691, 2045, 3455, 4499, 7601, 10225, 17275, 22495, 38005, 112475, 190025, 282619, 1413095, 3108809, 7065475, 15544045, 77720225]

約数ペア:

[(1, 77720225), (5, 15544045), (11, 7065475), (25, 3108809), (55, 1413095), (275, 282619), (409, 190025), (691, 112475), (2045, 38005), (3455, 22495), (4499, 17275), (7601, 10225)]