281566168

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{113}}^1$

素因数の和:261

約数の個数: 96

約数和(自身を含む): 613342800

約数和(自身を除く): 331776632

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 97, 104, 113, 152, 169, 194, 226, 247, 338, 388, 452, 494, 676, 776, 904, 988, 1261, 1352, 1469, 1843, 1976, 2147, 2522, 2938, 3211, 3686, 4294, 5044, 5876, 6422, 7372, 8588, 10088, 10961, 11752, 12844, 14744, 16393, 17176, 19097, 21922, 23959, 25688, 27911, 32786, 38194, 43844, 47918, 55822, 65572, 76388, 87688, 95836, 111644, 131144, 142493, 152776, 191672, 208259, 223288, 284986, 311467, 362843, 416518, 569972, 622934, 725686, 833036, 1139944, 1245868, 1451372, 1666072, 1852409, 2491736, 2707367, 2902744, 3704818, 5414734, 7409636, 10829468, 14819272, 21658936, 35195771, 70391542, 140783084, 281566168]

約数ペア:

[(1, 281566168), (2, 140783084), (4, 70391542), (8, 35195771), (13, 21658936), (19, 14819272), (26, 10829468), (38, 7409636), (52, 5414734), (76, 3704818), (97, 2902744), (104, 2707367), (113, 2491736), (152, 1852409), (169, 1666072), (194, 1451372), (226, 1245868), (247, 1139944), (338, 833036), (388, 725686), (452, 622934), (494, 569972), (676, 416518), (776, 362843), (904, 311467), (988, 284986), (1261, 223288), (1352, 208259), (1469, 191672), (1843, 152776), (1976, 142493), (2147, 131144), (2522, 111644), (2938, 95836), (3211, 87688), (3686, 76388), (4294, 65572), (5044, 55822), (5876, 47918), (6422, 43844), (7372, 38194), (8588, 32786), (10088, 27911), (10961, 25688), (11752, 23959), (12844, 21922), (14744, 19097), (16393, 17176)]