81326310

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{208529}}^1$

素因数の和:208552

約数の個数: 32

約数和(自身を含む): 210198240

約数和(自身を除く): 128871930

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 208529, 417058, 625587, 1042645, 1251174, 2085290, 2710877, 3127935, 5421754, 6255870, 8132631, 13554385, 16265262, 27108770, 40663155, 81326310]

約数ペア:

[(1, 81326310), (2, 40663155), (3, 27108770), (5, 16265262), (6, 13554385), (10, 8132631), (13, 6255870), (15, 5421754), (26, 3127935), (30, 2710877), (39, 2085290), (65, 1251174), (78, 1042645), (130, 625587), (195, 417058), (390, 208529)]