81656245

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{139}}^1\times {\mathrm{971}}^1$

素因数の和:1137

約数の個数: 24

約数和(自身を含む): 108591840

約数和(自身を除く): 26935595

約数列:

[1, 5, 11, 55, 121, 139, 605, 695, 971, 1529, 4855, 7645, 10681, 16819, 53405, 84095, 117491, 134969, 587455, 674845, 1484659, 7423295, 16331249, 81656245]

約数ペア:

[(1, 81656245), (5, 16331249), (11, 7423295), (55, 1484659), (121, 674845), (139, 587455), (605, 134969), (695, 117491), (971, 84095), (1529, 53405), (4855, 16819), (7645, 10681)]