208911885

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{193}}^1$

素因数の和:295

約数の個数: 96

約数和(自身を含む): 422615808

約数和(自身を除く): 213703923

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 61, 65, 91, 105, 169, 183, 193, 195, 273, 305, 427, 455, 507, 579, 793, 845, 915, 965, 1183, 1281, 1351, 1365, 2135, 2379, 2509, 2535, 2895, 3549, 3965, 4053, 5551, 5915, 6405, 6755, 7527, 10309, 11773, 11895, 12545, 16653, 17563, 17745, 20265, 27755, 30927, 32617, 35319, 37635, 51545, 52689, 58865, 72163, 82411, 83265, 87815, 97851, 153049, 154635, 163085, 176595, 216489, 228319, 247233, 263445, 360815, 412055, 459147, 489255, 684957, 765245, 1071343, 1082445, 1141595, 1236165, 1989637, 2295735, 3214029, 3424785, 5356715, 5968911, 9948185, 13927459, 16070145, 29844555, 41782377, 69637295, 208911885]

約数ペア:

[(1, 208911885), (3, 69637295), (5, 41782377), (7, 29844555), (13, 16070145), (15, 13927459), (21, 9948185), (35, 5968911), (39, 5356715), (61, 3424785), (65, 3214029), (91, 2295735), (105, 1989637), (169, 1236165), (183, 1141595), (193, 1082445), (195, 1071343), (273, 765245), (305, 684957), (427, 489255), (455, 459147), (507, 412055), (579, 360815), (793, 263445), (845, 247233), (915, 228319), (965, 216489), (1183, 176595), (1281, 163085), (1351, 154635), (1365, 153049), (2135, 97851), (2379, 87815), (2509, 83265), (2535, 82411), (2895, 72163), (3549, 58865), (3965, 52689), (4053, 51545), (5551, 37635), (5915, 35319), (6405, 32617), (6755, 30927), (7527, 27755), (10309, 20265), (11773, 17745), (11895, 17563), (12545, 16653)]