78214878

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{71}}^1\times {\mathrm{1249}}^1$

素因数の和:1342

約数の個数: 72

約数和(自身を含む): 200070000

約数和(自身を除く): 121855122

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 71, 98, 126, 142, 147, 213, 294, 426, 441, 497, 639, 882, 994, 1249, 1278, 1491, 2498, 2982, 3479, 3747, 4473, 6958, 7494, 8743, 8946, 10437, 11241, 17486, 20874, 22482, 26229, 31311, 52458, 61201, 62622, 78687, 88679, 122402, 157374, 177358, 183603, 266037, 367206, 532074, 550809, 620753, 798111, 1101618, 1241506, 1596222, 1862259, 3724518, 4345271, 5586777, 8690542, 11173554, 13035813, 26071626, 39107439, 78214878]

約数ペア:

[(1, 78214878), (2, 39107439), (3, 26071626), (6, 13035813), (7, 11173554), (9, 8690542), (14, 5586777), (18, 4345271), (21, 3724518), (42, 1862259), (49, 1596222), (63, 1241506), (71, 1101618), (98, 798111), (126, 620753), (142, 550809), (147, 532074), (213, 367206), (294, 266037), (426, 183603), (441, 177358), (497, 157374), (639, 122402), (882, 88679), (994, 78687), (1249, 62622), (1278, 61201), (1491, 52458), (2498, 31311), (2982, 26229), (3479, 22482), (3747, 20874), (4473, 17486), (6958, 11241), (7494, 10437), (8743, 8946)]