256641372

素因数分解:

$2^2\times 3^4\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:194

約数の個数: 180

約数和(自身を含む): 750204840

約数和(自身を除く): 493563468

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 43, 52, 54, 78, 81, 86, 108, 109, 117, 129, 156, 162, 169, 172, 218, 234, 258, 324, 327, 338, 351, 387, 436, 468, 507, 516, 559, 654, 676, 702, 774, 981, 1014, 1053, 1118, 1161, 1308, 1404, 1417, 1521, 1548, 1677, 1962, 2028, 2106, 2236, 2322, 2834, 2943, 3042, 3354, 3483, 3924, 4212, 4251, 4563, 4644, 4687, 5031, 5668, 5886, 6084, 6708, 6966, 7267, 8502, 8829, 9126, 9374, 10062, 11772, 12753, 13689, 13932, 14061, 14534, 15093, 17004, 17658, 18252, 18421, 18748, 20124, 21801, 25506, 27378, 28122, 29068, 30186, 35316, 36842, 38259, 42183, 43602, 45279, 51012, 54756, 55263, 56244, 60372, 60931, 65403, 73684, 76518, 84366, 87204, 90558, 110526, 114777, 121862, 126549, 130806, 153036, 165789, 168732, 181116, 182793, 196209, 221052, 229554, 243724, 253098, 261612, 331578, 365586, 379647, 392418, 459108, 497367, 506196, 548379, 588627, 663156, 731172, 759294, 784836, 792103, 994734, 1096758, 1177254, 1492101, 1518588, 1584206, 1645137, 1989468, 2193516, 2354508, 2376309, 2984202, 3168412, 3290274, 4752618, 4935411, 5968404, 6580548, 7128927, 9505236, 9870822, 14257854, 19741644, 21386781, 28515708, 42773562, 64160343, 85547124, 128320686, 256641372]

約数ペア:

[(1, 256641372), (2, 128320686), (3, 85547124), (4, 64160343), (6, 42773562), (9, 28515708), (12, 21386781), (13, 19741644), (18, 14257854), (26, 9870822), (27, 9505236), (36, 7128927), (39, 6580548), (43, 5968404), (52, 4935411), (54, 4752618), (78, 3290274), (81, 3168412), (86, 2984202), (108, 2376309), (109, 2354508), (117, 2193516), (129, 1989468), (156, 1645137), (162, 1584206), (169, 1518588), (172, 1492101), (218, 1177254), (234, 1096758), (258, 994734), (324, 792103), (327, 784836), (338, 759294), (351, 731172), (387, 663156), (436, 588627), (468, 548379), (507, 506196), (516, 497367), (559, 459108), (654, 392418), (676, 379647), (702, 365586), (774, 331578), (981, 261612), (1014, 253098), (1053, 243724), (1118, 229554), (1161, 221052), (1308, 196209), (1404, 182793), (1417, 181116), (1521, 168732), (1548, 165789), (1677, 153036), (1962, 130806), (2028, 126549), (2106, 121862), (2236, 114777), (2322, 110526), (2834, 90558), (2943, 87204), (3042, 84366), (3354, 76518), (3483, 73684), (3924, 65403), (4212, 60931), (4251, 60372), (4563, 56244), (4644, 55263), (4687, 54756), (5031, 51012), (5668, 45279), (5886, 43602), (6084, 42183), (6708, 38259), (6966, 36842), (7267, 35316), (8502, 30186), (8829, 29068), (9126, 28122), (9374, 27378), (10062, 25506), (11772, 21801), (12753, 20124), (13689, 18748), (13932, 18421), (14061, 18252), (14534, 17658), (15093, 17004)]