81361225

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{1549}}^1$

素因数の和:1761

約数の個数: 24

約数和(自身を含む): 110707200

約数和(自身を除く): 29345975

約数列:

[1, 5, 11, 25, 55, 191, 275, 955, 1549, 2101, 4775, 7745, 10505, 17039, 38725, 52525, 85195, 295859, 425975, 1479295, 3254449, 7396475, 16272245, 81361225]

約数ペア:

[(1, 81361225), (5, 16272245), (11, 7396475), (25, 3254449), (55, 1479295), (191, 425975), (275, 295859), (955, 85195), (1549, 52525), (2101, 38725), (4775, 17039), (7745, 10505)]