668835986

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{27631}}^1$

素因数の和:27679

約数の個数: 48

約数和(自身を含む): 1323020160

約数和(自身を除く): 654184174

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 49, 91, 98, 133, 182, 247, 266, 494, 637, 931, 1274, 1729, 1862, 3458, 12103, 24206, 27631, 55262, 193417, 359203, 386834, 524989, 718406, 1049978, 1353919, 2514421, 2707838, 3674923, 5028842, 6824857, 7349846, 13649714, 17600947, 25724461, 35201894, 47773999, 51448922, 95547998, 334417993, 668835986]

約数ペア:

[(1, 668835986), (2, 334417993), (7, 95547998), (13, 51448922), (14, 47773999), (19, 35201894), (26, 25724461), (38, 17600947), (49, 13649714), (91, 7349846), (98, 6824857), (133, 5028842), (182, 3674923), (247, 2707838), (266, 2514421), (494, 1353919), (637, 1049978), (931, 718406), (1274, 524989), (1729, 386834), (1862, 359203), (3458, 193417), (12103, 55262), (24206, 27631)]