257818626

素因数分解:

$2^1\times 3^5\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:159

約数の個数: 144

約数和(自身を含む): 650666016

約数和(自身を除く): 392847390

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 43, 54, 73, 78, 81, 86, 117, 129, 146, 162, 169, 219, 234, 243, 258, 338, 351, 387, 438, 486, 507, 559, 657, 702, 774, 949, 1014, 1053, 1118, 1161, 1314, 1521, 1677, 1898, 1971, 2106, 2322, 2847, 3042, 3139, 3159, 3354, 3483, 3942, 4563, 5031, 5694, 5913, 6278, 6318, 6966, 7267, 8541, 9126, 9417, 10062, 10449, 11826, 12337, 13689, 14534, 15093, 17082, 17739, 18834, 20898, 21801, 24674, 25623, 27378, 28251, 30186, 35478, 37011, 40807, 41067, 43602, 45279, 51246, 56502, 65403, 74022, 76869, 81614, 82134, 84753, 90558, 111033, 122421, 130806, 135837, 153738, 169506, 196209, 222066, 230607, 244842, 254259, 271674, 333099, 367263, 392418, 461214, 508518, 530491, 588627, 666198, 734526, 762777, 999297, 1060982, 1101789, 1177254, 1525554, 1591473, 1765881, 1998594, 2203578, 2997891, 3182946, 3305367, 3531762, 4774419, 5995782, 6610734, 9548838, 9916101, 14323257, 19832202, 28646514, 42969771, 85939542, 128909313, 257818626]

約数ペア:

[(1, 257818626), (2, 128909313), (3, 85939542), (6, 42969771), (9, 28646514), (13, 19832202), (18, 14323257), (26, 9916101), (27, 9548838), (39, 6610734), (43, 5995782), (54, 4774419), (73, 3531762), (78, 3305367), (81, 3182946), (86, 2997891), (117, 2203578), (129, 1998594), (146, 1765881), (162, 1591473), (169, 1525554), (219, 1177254), (234, 1101789), (243, 1060982), (258, 999297), (338, 762777), (351, 734526), (387, 666198), (438, 588627), (486, 530491), (507, 508518), (559, 461214), (657, 392418), (702, 367263), (774, 333099), (949, 271674), (1014, 254259), (1053, 244842), (1118, 230607), (1161, 222066), (1314, 196209), (1521, 169506), (1677, 153738), (1898, 135837), (1971, 130806), (2106, 122421), (2322, 111033), (2847, 90558), (3042, 84753), (3139, 82134), (3159, 81614), (3354, 76869), (3483, 74022), (3942, 65403), (4563, 56502), (5031, 51246), (5694, 45279), (5913, 43602), (6278, 41067), (6318, 40807), (6966, 37011), (7267, 35478), (8541, 30186), (9126, 28251), (9417, 27378), (10062, 25623), (10449, 24674), (11826, 21801), (12337, 20898), (13689, 18834), (14534, 17739), (15093, 17082)]