20565396904

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{1289}}^1\times {\mathrm{153409}}^1$

素因数の和:154717

約数の個数: 32

約数和(自身を含む): 41558769000

約数和(自身を除く): 20993372096

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 1289, 2578, 5156, 10312, 16757, 33514, 67028, 134056, 153409, 306818, 613636, 1227272, 1994317, 3988634, 7977268, 15954536, 197744201, 395488402, 790976804, 1581953608, 2570674613, 5141349226, 10282698452, 20565396904]

約数ペア:

[(1, 20565396904), (2, 10282698452), (4, 5141349226), (8, 2570674613), (13, 1581953608), (26, 790976804), (52, 395488402), (104, 197744201), (1289, 15954536), (2578, 7977268), (5156, 3988634), (10312, 1994317), (16757, 1227272), (33514, 613636), (67028, 306818), (134056, 153409)]