1280451268

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^2\times {\mathrm{263}}^1$

素因数の和:409

約数の個数: 72

約数和(自身を含む): 2502561600

約数和(自身を除く): 1222110332

約数列:

[1, 2, 4, 19, 29, 38, 47, 58, 76, 94, 116, 188, 263, 526, 551, 893, 1052, 1102, 1363, 1786, 2204, 2209, 2726, 3572, 4418, 4997, 5452, 7627, 8836, 9994, 12361, 15254, 19988, 24722, 25897, 30508, 41971, 49444, 51794, 64061, 83942, 103588, 128122, 144913, 167884, 234859, 256244, 289826, 358469, 469718, 579652, 580967, 716938, 939436, 1161934, 1217159, 1433876, 2323868, 2434318, 4868636, 6810911, 11038373, 13621822, 16848043, 22076746, 27243644, 33696086, 44153492, 67392172, 320112817, 640225634, 1280451268]

約数ペア:

[(1, 1280451268), (2, 640225634), (4, 320112817), (19, 67392172), (29, 44153492), (38, 33696086), (47, 27243644), (58, 22076746), (76, 16848043), (94, 13621822), (116, 11038373), (188, 6810911), (263, 4868636), (526, 2434318), (551, 2323868), (893, 1433876), (1052, 1217159), (1102, 1161934), (1363, 939436), (1786, 716938), (2204, 580967), (2209, 579652), (2726, 469718), (3572, 358469), (4418, 289826), (4997, 256244), (5452, 234859), (7627, 167884), (8836, 144913), (9994, 128122), (12361, 103588), (15254, 83942), (19988, 64061), (24722, 51794), (25897, 49444), (30508, 41971)]