18745552

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{383}}^1$

素因数の和:440

約数の個数: 80

約数和(自身を含む): 45711360

約数和(自身を除く): 26965808

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 23, 28, 38, 46, 56, 76, 92, 112, 133, 152, 161, 184, 266, 304, 322, 368, 383, 437, 532, 644, 766, 874, 1064, 1288, 1532, 1748, 2128, 2576, 2681, 3059, 3064, 3496, 5362, 6118, 6128, 6992, 7277, 8809, 10724, 12236, 14554, 17618, 21448, 24472, 29108, 35236, 42896, 48944, 50939, 58216, 61663, 70472, 101878, 116432, 123326, 140944, 167371, 203756, 246652, 334742, 407512, 493304, 669484, 815024, 986608, 1171597, 1338968, 2343194, 2677936, 4686388, 9372776, 18745552]

約数ペア:

[(1, 18745552), (2, 9372776), (4, 4686388), (7, 2677936), (8, 2343194), (14, 1338968), (16, 1171597), (19, 986608), (23, 815024), (28, 669484), (38, 493304), (46, 407512), (56, 334742), (76, 246652), (92, 203756), (112, 167371), (133, 140944), (152, 123326), (161, 116432), (184, 101878), (266, 70472), (304, 61663), (322, 58216), (368, 50939), (383, 48944), (437, 42896), (532, 35236), (644, 29108), (766, 24472), (874, 21448), (1064, 17618), (1288, 14554), (1532, 12236), (1748, 10724), (2128, 8809), (2576, 7277), (2681, 6992), (3059, 6128), (3064, 6118), (3496, 5362)]