251508978

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{761}}^1$

素因数の和:880

約数の個数: 96

約数和(自身を含む): 648565632

約数和(自身を除く): 397056654

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 43, 61, 63, 86, 122, 126, 129, 183, 258, 301, 366, 387, 427, 549, 602, 761, 774, 854, 903, 1098, 1281, 1522, 1806, 2283, 2562, 2623, 2709, 3843, 4566, 5246, 5327, 5418, 6849, 7686, 7869, 10654, 13698, 15738, 15981, 18361, 23607, 31962, 32723, 36722, 46421, 47214, 47943, 55083, 65446, 92842, 95886, 98169, 110166, 139263, 165249, 196338, 229061, 278526, 294507, 324947, 330498, 417789, 458122, 589014, 649894, 687183, 835578, 974841, 1374366, 1949682, 1996103, 2061549, 2924523, 3992206, 4123098, 5849046, 5988309, 11976618, 13972721, 17964927, 27945442, 35929854, 41918163, 83836326, 125754489, 251508978]

約数ペア:

[(1, 251508978), (2, 125754489), (3, 83836326), (6, 41918163), (7, 35929854), (9, 27945442), (14, 17964927), (18, 13972721), (21, 11976618), (42, 5988309), (43, 5849046), (61, 4123098), (63, 3992206), (86, 2924523), (122, 2061549), (126, 1996103), (129, 1949682), (183, 1374366), (258, 974841), (301, 835578), (366, 687183), (387, 649894), (427, 589014), (549, 458122), (602, 417789), (761, 330498), (774, 324947), (854, 294507), (903, 278526), (1098, 229061), (1281, 196338), (1522, 165249), (1806, 139263), (2283, 110166), (2562, 98169), (2623, 95886), (2709, 92842), (3843, 65446), (4566, 55083), (5246, 47943), (5327, 47214), (5418, 46421), (6849, 36722), (7686, 32723), (7869, 31962), (10654, 23607), (13698, 18361), (15738, 15981)]