889819749

素因数分解:

$3^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1979}}^1$

素因数の和:2072

約数の個数: 80

約数和(自身を含む): 1663643520

約数和(自身を除く): 773823771

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 61, 63, 81, 91, 117, 183, 189, 273, 351, 427, 549, 567, 793, 819, 1053, 1281, 1647, 1979, 2379, 2457, 3843, 4941, 5551, 5937, 7137, 7371, 11529, 13853, 16653, 17811, 21411, 25727, 34587, 41559, 49959, 53433, 64233, 77181, 120719, 124677, 149877, 160299, 180089, 231543, 362157, 374031, 449631, 540267, 694629, 845033, 1086471, 1122093, 1569347, 1620801, 2083887, 2535099, 3259413, 4708041, 4862403, 7605297, 9778239, 10985429, 14124123, 14587209, 22815891, 32956287, 42372369, 68447673, 98868861, 127117107, 296606583, 889819749]

約数ペア:

[(1, 889819749), (3, 296606583), (7, 127117107), (9, 98868861), (13, 68447673), (21, 42372369), (27, 32956287), (39, 22815891), (61, 14587209), (63, 14124123), (81, 10985429), (91, 9778239), (117, 7605297), (183, 4862403), (189, 4708041), (273, 3259413), (351, 2535099), (427, 2083887), (549, 1620801), (567, 1569347), (793, 1122093), (819, 1086471), (1053, 845033), (1281, 694629), (1647, 540267), (1979, 449631), (2379, 374031), (2457, 362157), (3843, 231543), (4941, 180089), (5551, 160299), (5937, 149877), (7137, 124677), (7371, 120719), (11529, 77181), (13853, 64233), (16653, 53433), (17811, 49959), (21411, 41559), (25727, 34587)]