320449136

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{150587}}^1$

素因数の和:150621

約数の個数: 40

約数和(自身を含む): 746916480

約数和(自身を除く): 426467344

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 112, 133, 152, 266, 304, 532, 1064, 2128, 150587, 301174, 602348, 1054109, 1204696, 2108218, 2409392, 2861153, 4216436, 5722306, 8432872, 11444612, 16865744, 20028071, 22889224, 40056142, 45778448, 80112284, 160224568, 320449136]

約数ペア:

[(1, 320449136), (2, 160224568), (4, 80112284), (7, 45778448), (8, 40056142), (14, 22889224), (16, 20028071), (19, 16865744), (28, 11444612), (38, 8432872), (56, 5722306), (76, 4216436), (112, 2861153), (133, 2409392), (152, 2108218), (266, 1204696), (304, 1054109), (532, 602348), (1064, 301174), (2128, 150587)]