19774293175

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{257}}^1\times {\mathrm{1091}}^1$

素因数の和:1409

約数の個数: 96

約数和(自身を含む): 31301996544

約数和(自身を除く): 11527703369

約数列:

[1, 5, 7, 13, 25, 31, 35, 65, 91, 155, 175, 217, 257, 325, 403, 455, 775, 1085, 1091, 1285, 1799, 2015, 2275, 2821, 3341, 5425, 5455, 6425, 7637, 7967, 8995, 10075, 14105, 14183, 16705, 23387, 27275, 33821, 38185, 39835, 44975, 55769, 70525, 70915, 83525, 99281, 103571, 116935, 169105, 190925, 199175, 236747, 278845, 280387, 354575, 439673, 496405, 517855, 584675, 724997, 845525, 1183735, 1394225, 1401935, 1962709, 2198365, 2482025, 2589275, 3077711, 3624985, 3645031, 5918675, 7009675, 8691997, 9813545, 10991825, 15388555, 18124925, 18225155, 25515217, 43459985, 49067725, 60843979, 76942775, 91125775, 112995961, 127576085, 217299925, 304219895, 564979805, 637880425, 790971727, 1521099475, 2824899025, 3954858635, 19774293175]

約数ペア:

[(1, 19774293175), (5, 3954858635), (7, 2824899025), (13, 1521099475), (25, 790971727), (31, 637880425), (35, 564979805), (65, 304219895), (91, 217299925), (155, 127576085), (175, 112995961), (217, 91125775), (257, 76942775), (325, 60843979), (403, 49067725), (455, 43459985), (775, 25515217), (1085, 18225155), (1091, 18124925), (1285, 15388555), (1799, 10991825), (2015, 9813545), (2275, 8691997), (2821, 7009675), (3341, 5918675), (5425, 3645031), (5455, 3624985), (6425, 3077711), (7637, 2589275), (7967, 2482025), (8995, 2198365), (10075, 1962709), (14105, 1401935), (14183, 1394225), (16705, 1183735), (23387, 845525), (27275, 724997), (33821, 584675), (38185, 517855), (39835, 496405), (44975, 439673), (55769, 354575), (70525, 280387), (70915, 278845), (83525, 236747), (99281, 199175), (103571, 190925), (116935, 169105)]