256220172

素因数分解:

$2^2\times 3^8\times {\mathrm{13}}^1\times {\mathrm{751}}^1$

素因数の和:792

約数の個数: 108

約数和(自身を含む): 725242336

約数和(自身を除く): 469022164

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 81, 108, 117, 156, 162, 234, 243, 324, 351, 468, 486, 702, 729, 751, 972, 1053, 1404, 1458, 1502, 2106, 2187, 2253, 2916, 3004, 3159, 4212, 4374, 4506, 6318, 6561, 6759, 8748, 9012, 9477, 9763, 12636, 13122, 13518, 18954, 19526, 20277, 26244, 27036, 28431, 29289, 37908, 39052, 40554, 56862, 58578, 60831, 81108, 85293, 87867, 113724, 117156, 121662, 170586, 175734, 182493, 243324, 263601, 341172, 351468, 364986, 527202, 547479, 729972, 790803, 1054404, 1094958, 1581606, 1642437, 2189916, 2372409, 3163212, 3284874, 4744818, 4927311, 6569748, 7117227, 9489636, 9854622, 14234454, 19709244, 21351681, 28468908, 42703362, 64055043, 85406724, 128110086, 256220172]

約数ペア:

[(1, 256220172), (2, 128110086), (3, 85406724), (4, 64055043), (6, 42703362), (9, 28468908), (12, 21351681), (13, 19709244), (18, 14234454), (26, 9854622), (27, 9489636), (36, 7117227), (39, 6569748), (52, 4927311), (54, 4744818), (78, 3284874), (81, 3163212), (108, 2372409), (117, 2189916), (156, 1642437), (162, 1581606), (234, 1094958), (243, 1054404), (324, 790803), (351, 729972), (468, 547479), (486, 527202), (702, 364986), (729, 351468), (751, 341172), (972, 263601), (1053, 243324), (1404, 182493), (1458, 175734), (1502, 170586), (2106, 121662), (2187, 117156), (2253, 113724), (2916, 87867), (3004, 85293), (3159, 81108), (4212, 60831), (4374, 58578), (4506, 56862), (6318, 40554), (6561, 39052), (6759, 37908), (8748, 29289), (9012, 28431), (9477, 27036), (9763, 26244), (12636, 20277), (13122, 19526), (13518, 18954)]