18565520072

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{647}}^1\times {\mathrm{19181}}^1$

素因数の和:19862

約数の個数: 64

約数和(自身を含む): 40272992640

約数和(自身を除く): 21707472568

約数列:

[1, 2, 4, 8, 11, 17, 22, 34, 44, 68, 88, 136, 187, 374, 647, 748, 1294, 1496, 2588, 5176, 7117, 10999, 14234, 19181, 21998, 28468, 38362, 43996, 56936, 76724, 87992, 120989, 153448, 210991, 241978, 326077, 421982, 483956, 652154, 843964, 967912, 1304308, 1687928, 2608616, 3586847, 7173694, 12410107, 14347388, 24820214, 28694776, 49640428, 99280856, 136511177, 210971819, 273022354, 421943638, 546044708, 843887276, 1092089416, 1687774552, 2320690009, 4641380018, 9282760036, 18565520072]

約数ペア:

[(1, 18565520072), (2, 9282760036), (4, 4641380018), (8, 2320690009), (11, 1687774552), (17, 1092089416), (22, 843887276), (34, 546044708), (44, 421943638), (68, 273022354), (88, 210971819), (136, 136511177), (187, 99280856), (374, 49640428), (647, 28694776), (748, 24820214), (1294, 14347388), (1496, 12410107), (2588, 7173694), (5176, 3586847), (7117, 2608616), (10999, 1687928), (14234, 1304308), (19181, 967912), (21998, 843964), (28468, 652154), (38362, 483956), (43996, 421982), (56936, 326077), (76724, 241978), (87992, 210991), (120989, 153448)]