778870876

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{1051}}^1$

素因数の和:1287

約数の個数: 72

約数和(自身を含む): 1678992000

約数和(自身を除く): 900121124

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 49, 76, 98, 133, 196, 199, 266, 398, 532, 796, 931, 1051, 1393, 1862, 2102, 2786, 3724, 3781, 4204, 5572, 7357, 7562, 9751, 14714, 15124, 19502, 19969, 26467, 29428, 39004, 39938, 51499, 52934, 79876, 102998, 105868, 139783, 185269, 205996, 209149, 279566, 370538, 418298, 559132, 741076, 836596, 978481, 1464043, 1956962, 2928086, 3913924, 3973831, 5856172, 7947662, 10248301, 15895324, 20496602, 27816817, 40993204, 55633634, 111267268, 194717719, 389435438, 778870876]

約数ペア:

[(1, 778870876), (2, 389435438), (4, 194717719), (7, 111267268), (14, 55633634), (19, 40993204), (28, 27816817), (38, 20496602), (49, 15895324), (76, 10248301), (98, 7947662), (133, 5856172), (196, 3973831), (199, 3913924), (266, 2928086), (398, 1956962), (532, 1464043), (796, 978481), (931, 836596), (1051, 741076), (1393, 559132), (1862, 418298), (2102, 370538), (2786, 279566), (3724, 209149), (3781, 205996), (4204, 185269), (5572, 139783), (7357, 105868), (7562, 102998), (9751, 79876), (14714, 52934), (15124, 51499), (19502, 39938), (19969, 39004), (26467, 29428)]